I'm in the same boat right now... have been having one of my migraines/tension headaches since last Thursday... At home, it's not as bad, but when I go out, around noise, it gets much worse. Sunday I thought i was going to drop at the cash register (working retail) because the pain was too much. I went home.
If you're feeling it in the neck and shoulders, like me, then it may be a combo headache. I'll be seeing a massage therapist this afternoon. She specializes in deep tissue... heh heh heh... I hope i can drive home afterward.
I got to the point with this one that Aleve and my muscle relaxants weren't helping... of course, the MR is a fairly mild one, compared to others... but it still *usually* does the job.
Something I've heard, is if you normally drink coffee, and haven't had any since the pain began, have some... of course, the opposite can also be true... if you don't normally have any and then have some, and the pain hits...
Good luck... I feel for ya.