I had a nerve pinch at L3/4, 4/5 . I was unable to have surgery so I sought out acupuncture for relief of the numbness I had in my balls of my feet. My 1st appointment went well and used heat on the needles. No problems. 2nd appt just needles no problems. 3rd appt needles (and the other appts )used needles at neck, mid back, thighs, calves and balls of feet. I left the appt. and felt well. I awoke about 2am the next day with my feet tingeling severly and my toes feeling swollen or numb like they had thin sleves over each toe. I told the practicioner b/4 the next appt. 4th appt I had needles in same places except not in the feet also electric stimulation. 5th appt. I reported the numb toes and was told Neuropathy was difficult to treat and he couldn't help me further. That was in June of 2013. Dec. of 2013 I had back surgery to releave the nerve pinch in my back. My ball of feet problem is still here as is the numb toes. My question is Did the acupuncture cause permenent nerve damage causing my toes to go numb? How could the numb toes be a coincedence?