My doctor has asked me to take glycomet 500 and istamet 50/5000 1 tablet each 1-0-1 after food. Also asked to take oxra 10 mg in the morning only. Now I feel really tired even after food. I tested my ppbs and found 120 or below after 2 hrs of food and 80-90 before food. Is my medicines more (over dose. I had very serious sweet eating habit in last 6-9 months and the ppbs reached to 400lvele from my 160 level ppbs. Now I am back to strict diet and exercise. Is there is any way I can avoid taking tablets or reduce my doses.