| Although I dont know if it's related at all, but maybe... My neck does that.. Gets so stiff the only way I can move it is to use my arms and slowly stretch it out. I have to do this every morning for atleast 15 mins. It's all in the muscles, I can stretch the muscles, it's the "compression" ( moving side to side, one side stretches, the other compresses ) that makes my neck pretty much "lock up"... Mostly on the left side, I get headaches everyday because of it.. Been fighting it for 2 yrs, it came on all the sudden, I didnt hurt myself or anything, x-rays show nothing, and nothing odd like that has happened to any other part of my body... I've tried to find out what could be causing it, but nobody I've spoke with can really tell me anything... Everytime I ask if it could be related to diabetes, I always get told "probably not", but they cant tell me what may be causing it so I'm not counting it out... But just like everyother ache and pain I've just learned to live with it..
I would like to know what you come up with though, obviously you've looked into such matters more than I have...  | 
