Dr change it to glipizide due to severe headaches n asthma attack. But i didnt take the glipizide. I took chromium instead but my a1c went high to 7 and i notice my vision changed. Should i start taking the glipizide now while taking the chromium? Btw, I'm5'7 & 290 lbs now and everybody in my family takes insulin for diabetes already. I'm afraid. Pls help me. Ty