[tacticalogic]

I went to the doctor to start with, and he's the one who told me to use the heating pad. It made it feel better while it was on there, but as soon as I took it off it and tried to move around, it would sieze up again. The ice seemed to make it tighten up a little more initially, but after awhile it would start to relax. After about 45 minutes under the icepack, I could get up and move around for at least a couple of hours before it started to tighten up again.

[Dead Corpse]

Yup. Stick with the ice. Possibly go for some Motrin or Ibuprophin. Sounds like you have some spasming going on. Increased blood flow can actually make that worse.

Ice, Rest, Motrin... and fer cryin out loud, lift with your legs and not your back! ;-)