Massive Kink!

The headache I had yesterday turned into a MASSIVE kink in my neck last night. I could barely hold my head up to watch 'Smallville' with Collin last night. I went to bed at 10:30 and I could barely move my head. I woke up this morning and now my whole body hurts. (Collin calls it an "Exercise Hangover"! lol I like that term.)
My neck is still stiff... I wonder what the heck I did to it?