i will tell you the specifics i have been having pain when i have been running or walking. I have pain only in my calf the muscle area. I have already tried taking many magnesium and calcium pills but they have not worked. About 2 years ago i had a virus and lost many blood cells. Since then i have not been in good fitness but have still been playing. If i stop training for about a week the pain goes away but when i start again the pain comes back. My legs always feel heavy when i play then it turns to pain. when i train in the sun the pain is heavy. But when i train in the rain the pain is reduced and i can play longer. Doctor please respond tell me what i should do who i should talk to and how do i get my fitness back slowly if that is the problem . Please doctor you are my only hope.