Yesterday, I ran my car head-long into a barrier at about 10 mph (maybe less). I was able to anticipate the impact, and tensed all of the muscles in my body. This worked well, except in relation to my neck. Being strapped in with a seatbelt, and given the weight of my head, my head pitched forward when I hit. I should also mention that I am extremely weak under the best of circumstances as a result of TMS. When I impacted, I felt a very definite stretching within my neck muscles. I wouldn't exactly even call the sensation pain. My neck was just tight. As best as I can recall, pain didn't start until about five minutes later (or maybe three minutes, I don't really know), and started to increase over the next forty minutes. The pain has been with me ever since, and has not diminished. According to crash tests, anything over 5 mph has been shown to be quite capable of tearing muscle fibers within the neck. Considering how weak my neck already is (I can only sit for an hour or two at a time), I wouldn't be surprised if this is a real injury. It seems strange that it was delayed, though. I certainly believe that pain that manifests itself a day later is TMS, but a few minutes? I don't know what to think. Like I say, there was a pretty serious "stretching" sensation at the time of impact. Any ideas? Thanks.