I have Fibromyalgia and my pain medication just stopped working, does anyone have any advice?

I have been taking pain medication for my Fibromyalgia, it is the only way I can function even a little. Yesterday it stopped working and my pain keeps getting worse and worse. I have already tried every other medication imaginable for FMS, except the higher up pain meds which I am trying very hard to avoid (though at this point I would gladly take absolutely anything that would help my pain). Is there anyone who can give me advice about what they have done in this situation? As far as how they deal with the pain when it is physically and mentally overwhelming. I keep thinking that if things dont get better, I will spend my life curled up in a ball in bed, crying, just trying to get to the point where I am exhausted enough to finally fall asleep.
That thought and the overwhelming pain are making me so utterly miserable.
Does anyone have any advice?
Lupieche, thank you. It helps me alot to know that I am not the only one who is facing these difficulties. My mom actually told me about Gabapentin, I was planning on asking my doctor about it on my next visit but that wont be for 2 months. I used to see him every month but when my new pain meds started working he rescheduled. I am going to call in the morning to see if I can get an emergency appointment because the ERs in the area think I am either crazy or a liar for coming in with so many different pains. I have since learned to keep the awful pains mostly to myself for fear of being treated like a liar again.
I dont know why I never thought of getting an electric blanket, thats a really good idea thank you 🙂 Heat helps so much. I used to buy heat pads but it ends up being expensive after awhile.
I am going to try what you suggested, I think a good movie would at least distract me from worrying.