started last year with my legs feelin very weak and every joint cracking and poppin.then it settled in just my right leg for about four months i felt good except for the right leg feeling dead.then all of a sudden it came on like a hurricane started effecting my arms and both legs,had emgs done lumbar puncture,mri brain,neck ,t-spine,lumbar,cat scan of chest abdomen pelvis,small nerve fiber biobsy,belly fat biobsy nothing coming up and all my muscle and joints feel locked up and i cant lift anything heavy,hard time walking and i am losing strength fast.any ideas or help i am only 39.