I have been taking my medication and have been having severe gastric side effects and have lost a significant amount of weight. I am 6' 4" and weigh 161lbs. I do not need to lose weight just keep it on.
I take metformin and glipizide, I exercise as much as I can with no reduction in my blood glucose level.

You need to see your endocrinologist amd get a new plan for covering your blood sugars .
When your sugars are under control, you will stop losing weight and be able to gain back the weight you lost.
Also work with your dietitian .