strange one! Pulled rear delt pain died down a week later and trained as normal. I am a long distance truck driver now when i sit over the wheel elbows into the steering wheel i get pins and needles into my arm and eventually into my forearm. If i sit up the pain goes. Its not effecting strength when i train but after doing tri's or shoulders it does make it worse. Trif vibro plate seemed t work a bit. Any advice? Please.