Wow! I was surprised to hear it was your PMS that told you you were maxed out. I know there are PMSs that are gun-shy about prescribing opioids, but I always wonder why they specialized in pain management.
I know it's not easy to do, but you might want to consider finding another PMS. Here's a link to a directory of pain doctors in case you want to try that: http://www.doctorsforpain.com/physicians/index.html
The only other think I can think of would be to try some complementary treatments in addition to the medication you're taking. One to consider would be acupuncture. Here's some info on it: Treating Pain With Acupuncture
Another is something called Mindfullness Based Stress Reduction. I know it sounds strange, but I know of people who have tried it and say it really does help. They don't claim it takes away all pain, but they do say they have improved. Here's a link to more information about it: Mindfullness Based Stress Reduction
And here's a link to a directory to help you find a program in your area: MBSR Directory
If you don't find a program through the directory, try calling local hospitals to see if they offer it.
I wish I could give you some better or easier options. The most important thing with chronic pain is to find a doctor who will listen and is willing to work with you. I know that's easier said than done.
Karen Lee Richards