Well, I had nerve damage in my back and shoulder. There is no way to be sure how it was caused, the leading candidate was a virus that attacked my nerves. The term is Parsonage Turner Syndrome. I also have Long Thoracic Nerve Palsy. I had a very extreme case that caused scapular winging, which just means my muscles that held down my shoulder blade didn't work and it would "flare out" when I tried to lift my arm, making it impossible to lift my arm. I had a very extreme case. My doctor took two hamstring tendons and attached them to my pec tendon to hold down my shoulder blade. They now go under my arm pit to my back and I had to go through therapy to teach my pec muscle to sqeeze when I live my shoulder. I became a case study for my doctor. He actually practiced the surgery on a cadaver. The nerves never grew back in my shoulder so I live with constant pain and numbness in parts of my arm and shoulder. I'm no doctor, so my explanation is very vague and I hope it makes sense. I have video of what my shoulder blade did. It is really pretty cool. The other things that could have caused this nerve damage would be trauma to the area, a pinched nerve, or the most surprising to me was that deep tissue massage can cause nerve damage. The Parsonage Turner Syndrome is seen in swimmers because of how violently they move their arms above their head. In a study of high school and college athletes, Long thoracic nerve palsy was shown to be more frequent in softball pitchers, baseball pitchers, and people who constantly lift weights.
"I thought I'd get your theories, mock them, then embrace my own. The usual." -- House
"You guys are still thinking like doctors when you should be thinking like plumbers. Come on, I wanna see some butt crack." -- House