My right leg started with numbness on right calf of leg. It has progressed to my knee area the to my whole thigh. It feels like it is just waking up from being asleep and by the end of the day the muscles feel tight cramped and totally asleep. My doctor had my knee xrayed came out fine, (it is Sunday_ I had an mri on Fri no results yet? But it has been going on for more than 3 wks , what could cause this? It's driving me crazy! Thank-you for any help or advice. >:(