I used to weightlift since many years and since around one year i started to play Muay thai. After several months of training i started to fell tingling in my fingertips in both hands but I didn't give any attention because I thought it was caused by B12 deficiency due to heavy workout. Later on and till this moment, I have developed continuous numbness in thumb, index, middle and half of ring finger in both hands but more visible in left hand ( i am left handed ). In addition, there was numbness in palmar side of both hands where the median nerve passes by. There is also severe weakness in my left hand index finger to the extent that I am not capable to press a remote control button with it! I also noted weakness in my left arm to the extent that I am unable to do a bicep curl with a light dumbell. i have visited 7 doctors and did 3 EMGs till now, the first one showed mild carpal tunnel, the second showed moderate CTS and the last one which was done today showed no CTS or peripheral neuropathy except for mild Pronator teres Syndrome in my right arm !! The doctor today asked for MRI for my neck and a blood test called C.P.K
I did kidney, liver, sugar blood and thyroid test but they were all within normal ranges. The last doctor is wondering why I have bilateral weakness. What could it be???