I m a 46 year old male diabetes having diabetes for past seven years bmi 21 (hight 5.10 and weight 63.5 kg. My problem is my doctor prescribed me glicomet gp 2 0.5 mg dosage each after breakfast and dinner, my bs level 90 fasting and 170 to 150 pp and feeling occassional pain in my shoulder upper heart area. I m also doing regular walking for 90minutes a day. Is this pain due to medicinal side effect? My h1bac 7.2 three months ago. Pls advice