I was just now going to reply to your PM.

The pain sounds absolutely miserable. Of course if it lasts (I'd say more than a week) you need to see your doc. But I agree with you - OTC remedies can definitely help at this point.
Do you take Advil or a similar med? Ibuprofen relieves inflammation so you can get some very gentle movement/stretches in and loosen things up.
If there's a God, I think heating pads are a gift from him/her.
I'm thinking that a lot of rest and a little bit of gentle stretches, plus the other home treatments, are the way to go.
(btw, I don't trust chiros, either...plus had a really upsetting experience with one, years ago. Total creepo.)
I'm sending you loving, healing vibes
~**~**~**~*~~***