metformin is hard on your stomache i have been on 2000mgs a day for ayear now and it still gives me gas and the back door trots. your diet really counts if you havent changed it then you need to change it now. there are different ones that really help us controll our bg levels
try this one
Vegetarian Diet and Lifestyle: Hallelujah Acres it is said that a raw food diet and exercise can get you off the meds if you are t2. i havent tried it because i like meat to much to give it up just yet (only wild game and organic).