Here's a lesson in bone stucture ladies and gentlemen.
This is a normal, healthy spine for an adult:

This is my spine:

I want you to notice the upper back and neck area. See the wiggle on the left? Normal spines aren't supposed to do that. See how my neck curves forward while the other curves back? That's not normal either. And believe me, that little wiggle and curve hurt like a fucking bitch. The chiropractor thinks that this problem started with my car accidents, particularly my most recent graceful performance of rolling in the ditch. It didn't hurt at the time, so I didn't think I had an injury. Well, lo and behold, my neck gave me its first fit about three months later, and it has been happening on a yearly/bi-yearly basis after that. I'm on round number three now. Most of my pain stems from the fact that the muscles on each side of my neck are trying to compensate for the curvature by tightening on one side and loosening on the other. At least that's what it was doing in the beginning. Now, since the problem has been allowed to progress for a year and a half now, the muscle spasms have spread into my shoulder muscles. Mr. Chiropractor said that the heat readings he was getting off the muscles in my neck are almost off the chart, so they're pretty badly inflamed at this point.
I was hoping for a quick snap, crackle, pop today and then be pain free forever, but I guess my problem is a lot more severe than I expected. It's so bad, in fact, that I have to see Mr. Chiropractor 12 more times over the next 2 months. Yeah, that works great with my already crazy ass schedule. Sheesh. I sure hope my insurance is going to pick up the tab for this shit.