I have fatigue, depression, intenstinal gas with wheat, etc. Someone said I should be tested for the disease, but I think I gain weight more than lose. Could it really be a possibility and what are the odds?

It is very likely you could have Celiac Disease. One of the reasons docs are so hesitant to test for CD is that the symtpoms are all over the place. Yes weight gain is a symptom, after years of beign skinny as a child I suddenly gained about 20-25 lbs as an adult and could NOT get it off. Once I was diagnosed with Cd it got harder but i'm glad I"m diagnosed. Once you go gluten free your body starts absorbing things it didnt before so you do tend to gain some weight when u go gluten free.
The odds are high! 1 in 133 ppl have celiac disease but 97% dont know they do. (Dont ask me how they figure that!)
My advice is to demand testing (I'll include what tests below) but you MUST be eating gluten for the test to be accurate!! Here is the info from an official CD page.
Amy
Chairperson Louisiana North Shore Celiac SPrue Association
What is Celiac Disease?
Celiac disease (CD) is a genetic disorder. In people with CD, eating certain types of protein, called gluten, sets off an autoimmune response that causes damage to the small intestine. This, in turn, causes the small intestine to lose its ability to absorb the nutrients found in food, leading to malnutrition and a variety of other complications.
The offending protein, gluten, is found in wheat, barley, rye, and to a lesser extent, oats (WBRO). Related proteins are found in triticale, spelt, kamut. Refer to grains and flours Glossary for a more extensive list of both safe and offending grains.

Celiac Disease is:
??a genetic, inheritable disease.
??linked to genetically transmitted histocompatibility cell antigens (HLA DR3-DQ2, DR5/7 DQ2, and DR4-DQ8).
??COMMON. Approximately 1 in 133 people have CD, however, only about 3% of these have been diagnosed. This means that there are over 2.1 million undiagnosed people with celiac disease in the United States.
??characterized by damage to the mucosal lining of the small intestine which is known as villous atrophy.
??responsible for the malabsorption of nutrients resulting in malnutrition.
??linked to skin blisters known as dermatitis herpetiformis (DH).
??not age-dependent. It may become active at any age.
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Celiac Disease is NOT:
??simply a food allergy.
??an idiosyncratic reaction to food proteins (mediated by IgE).
??typified by a rapid histamine-type reaction (such as bronchospasm, urticaria, etc.).
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The Damaging Proteins
The term "gluten" is, in a sense, a generic term for the storage proteins that are found in grains. In reality, each type of protein - gliadin in wheat, secalin in rye, hordein in barley, avenin in oats, zein in corn and oryzenin in rice - is slightly different from the others. The "gluten" in wheat, rye, barley, and in a much lower amount, oats, contains particular amino acid sequences that are harmful to persons with celiac disease. The damaging proteins are particularly rich in proline and glutamine (especially the amino acid sequences which are in the following orders: Pro-Ser-Gln-Gln and Gln-Gln-Gln-Pro). As peptides, some such as 33-MER, cannot be broken down any further. In people with celiac disease, 33-MER stimulates T-cells to produce antibodies. The antibodies, in turn, attack the villi in the small intestine, reducing their ability to absorb nutrients. It is important to note that these sequences are NOT found in the proteins of corn and rice.
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The Nature of the Injury
The damage to the small intestine (the jejunum) caused by this disease is very slow to develop and is insidious. It is:
??almost certainly mediated by the immune system.
??associated with ANTIBODIES to gliadin, reticulin and/or endomysial (smooth muscle) proteins.
??probably not directly caused by the antibodies, though they may be signals for cell-mediated immunity.
??probably produced by the cellular immune system (T cells) - but only when gluten-type prolamins are present.
??reversible, in most cases, to completely normal bowel function, if the injurious protein is excluded from the diet.
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How Does One "Catch" Celiac Disease?
Celiac disease cannot be "caught," but rather the potential for CD may be in the body from birth. Its onset is not confined to a particular age range or gender, although more women are diagnosed than men. It is not known exactly what activates the disease, however three things are required for a person to develop CD:
??A genetic disposition: being born with the necessary genes. The Human Leukocyte Antigen (HLA) genes specifically linked to celiac disease are DR3, DQ2 and DQ8.
??A trigger: some environmental, emotional or physical event in one???s life. While triggering factors are not fully understood, possibilities include, but are not limited to adding solids to a baby???s diet, going through puberty, enduring a surgery or pregnancy, experiencing a stressful situation, catching a virus, increasing WBRO products in the diet, or developing a bacterial infection to which the immune system responds inappropriately.
??A diet: containing WBRO, or any of their derivatives.
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Summary
Celiac disease is life-long and currently incurable. The only known treatment at this time is strict adherence to a gluten-free lifestyle, free of WBRO.

How is Celiac Disease Diagnosed?
When working with a physician to diagnose and/or confirm celiac disease (CD), three major steps are taken. First, a thorough physical examination is conducted, including a series of blood tests, sometimes referred to as the Celiac Blood Panel. Second, a duodenal biopsy is performed with multiple samples from multiple locations in the small intestine. And third, the gluten-free diet is implemented. When the patient shows a positive response to the diet - symptoms subside and the small intestine returns to its normal, healthy state - the diagnosis of CD is confirmed.
(NOTE: To ensure the most accurate and timely diagnosis, the gluten-free diet should be implemented only after the first two steps have been completed.)

1: Examination
Patient History
When reviewing a patient's medical history and symptoms with a physician, the following areas should be considered in the discussion: (The first three are applicable to adults and children. The last is specific to children.)
??What are the symptoms? How long have they been present? How often do they occur?
??What is the patient's emotional state? Is it consistent throughout the day? When and for how long do the symptoms occur?
??What else is involved? Other diseases? Other organs?
??How is the child developing?
See What are the Symptoms of Celiac Disease? for a thorough list of possible symptoms.
Physical Examination
Depending on the presentation of symptoms, the physician will check for some of the following items:
??emaciation
??pallor (due to anemia)
??hypotension (low blood pressure)
??edema (due to low levels of protein, albumin in the blood)
??dermatitis herpetiformis (skin lesions)
??easy bruising (lack of vitamin K)
??bone or skin and mucosa membrane changes due to vitamin deficiencies
??protruding or distended abdomen (intestine dysmotility)
??loss of various sensations in extremities including vibration, position and light touch (vitamin deficiency)
??signs of severe vitamin/mineral deficiencies which may include: ?? -diminished deep tendon reflexes
??muscle spasms (magnesium and/or calcium deficiency)
??bone tenderness and bone pain (due to osteomalacia)
Blood Tests
A number of tests, sometimes collectively referred to as the Celiac Blood Panel, will aid the physician in diagnosis. The tests may include, but are not limited to:
??Serologic Tests
1.EMA (Immunoglobulin A anti-endomysium antibodies)
2.AGA (IgA anti-gliadin antibodies)
3.AGG (IgG anti-gliadin antibodies)
4.tTGA (IgA anti-tissue transglutaminase)
??Tolerance or Measure of Digestion/Absorption Tests
1.Lactose tolerance test.
2.D-Xylose test.
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2: Biopsy
In the event that clinical signs and laboratory tests indicate probable malabsorption, a biopsy of the small intestine jejunal is called for. In this test, a small flexible biopsy instrument is passed through a tube, down the throat, through the stomach and into the upper end of the small intestine where patchy, multiple snippets of tissue are gathered. The tube is removed and the tissue samples are examined under a microscope for signs of injury.

I have a gluten-intolerance. My doctor found it by looking at my reactions to foods. Also found out I was having trouble with milk sugars. I got a test for celiac recently, but I turned up negative. If you come up negative for celiac, but the diet helps. What its called is "Non-Celiac Gluten Sensitivity"... There's no test for it except seeing how the diet works. Sounds like you have it! Wheat (and dairy) made my intestines feel like a hard blown up balloon. It makes you gain weight too. I used to go to sleep at like 6pm every night and wake up at like 9 or 10, AND take naps during the day. Now I have so much energy... I'm always itching to go on a hike. lol
I used to have chronic diarrhea as well (had it for 2 straight months one time). I still have problems with it, but I've heard probiotics are really good for people with food intolerances. It can help replace all the bacteria lost throughout time.
Addition: I forgot to mention... Celiac means there is major intestinal damage. You need to get tested for that first. If it comes up negative, get on the gluten-free diet before you turn celiac. 1 in 7 people have Non-Celiac Gluten-Intolerance (much more than celiac), but most don't know it.... Doctors tend to forget about the other kind.

I just read something on this today, before this never heard of it and now a question.... very odd.....What you need to do is get a blood test to see if you have this first...

You can have weight gain or weight loss with Celiac disease. Or your weight can stay the same. Not all of the symptoms of Celiacs are the same for all people. That is why it is one of the most misdiagnosed diseases out there. A friend of mine has two children with the disease and I've read quit a bit about it. You need to be tested if you are concerned about having it. First, a blood test. But even that can be wrong. You may need to have a biopsy done on your small intestine. It's a simple procedure, they go in through your mouth and apparently it's not painful. Talk to your doctor.

Classic symptoms of celiac disease may include:
abdominal cramping, intestinal gas, distention and bloating
chronic diarrhea or constipation (or both)
steatorrhea -- fatty stools
anemia - unexplained, due to folic acid, B12, or iron deficiency (or all)
weight loss with large appetite, or weight gain
If you feel that you have celiac disease the BEST way to be tested is to have a upper endoscopy (performed by a gastroenterologist). They would take a biopsy of you small bowel and stomach. There are also blood tests you can do- but a bx is the best way to determin if you have the disease.If you come back positive from the bx then you should stay away from gluten (wheat) in your diet. If you live in IL i can suggest a good group of Drs to help you.

I have the same symptoms as you do. I do not handle milk very well. I got tested for celiac but test came back negative.
When I am on the wheat free diet, I feel a lot better. I have more energy, happier etc.
Why tests come back negative I don't know. I also read somewhere that depression is a big symptom in celiac.
Also they told me that you never should go on a gluten free diet before you get tested. It might give a wrong result.