... hamsstring,knee area. thru out the years they were seldom noticed. as a matter of fact i cant remember the last occurance,but here in the last 6 months they have come extremely crippleing where i have to take hot scalding baths, with epson salt to quiten the episodes. the salt barely works anymore and ive developed numbness on the outside of my thighs. im 40 yr old male and ive had a 3 level disc replace. in my neck. can anyone tell me where to began researching my medical diagnosis