Hi throbuk. Unfortunately, with FMS, you can have a garden variety of other syndromes too (like IBS) - not just the trigger points/pain and stiffness that are a part of FMS. Your doc's right - there is no cure for FMS, but there are different medications that can help alleviate your most difficult symptoms. Unfortunately, there is no cure for IBS either. I'm speaking from experience - have been diagnosed with both IBS and FMS for 20+ years.
It's important to do a lot of research and reading on both syndromes. Chart what your most aggrevating symptoms are and work with your doctor on trying different methods to learn to live with it. Since I don't know what your primary IBS symptoms are (diarrhea, constipation or combo of both?), I'm not going to go into lots of detail about what I've had to do over the last several years. I live with the pain/stiffness of FMS daily, and with IBS added on, some days are just better than others. You may have to try lots of different remedies to find out what works for you. Everyone's symptoms are unique, but similar.
Keep us posted on your progress. You might want to also post on the Fibromyalgia site here too, to get others' advice.
Good luck to you,