I Was Diagnosed With Type 2 Diabetes In January, I

I was diagnosed with Type 2 Diabetes in January, I have been following a great diet and lost 36lbs so far,my A1C count went from 10.9 down to 7.01. I have been having leg cramp problems since Feb,and was prescribed Potassium pills(didn't help) then changed to Magnesium pills which did give me some relief until last week. Then I started to hurt in my legs,Calf Muscle,Back of my thighs, and now my arms(Forearm Bisep and shoulders. It feels like all my major muscle hurt when im resting and moving as if I had a Charlie horse in all my muscle Can you advise??