Hi, I have been having some nerve issues on my left side. Near my spine, behind my shoulder blade, I keep getting a numb/pins and needles sensation and the occasional pain/ache. I also often wake up with my left arm dead or if I lean on my left, my pinky and ring finger go numb. On occasion I wake up with a buise on my forearm, in line with my pinky. A few months ago I pulled my back left neck muscle. Could these all be related?