I Have Diabetes Type 2 ,I Started Taking Gabapentin 7

I have diabetes type 2 ,I started taking gabapentin 7 days ago because of experiencing sharp shooting pains in my feet. I only had an attack like this once.Now I'am having super soar calve muscles I can hardly walk. I'am taking Janumet,Glimrpiride (diabetes meds)Metoprolol Succ, Amlodipine Besylate,Benicar,Hydrochlorothiazide-25mg(4x a wk) Thyroid,Vytorin,Magnesium potassium asporotates (2xday) to prevent leg cramps.I do have neuropathy, but always able to control it. I welcome your thoughts on this problem. One other note my feet & legs are not swollen Thank You Gary