None of us are doctors, but answer based on our own experience and whatever knowledge we've managed to pick up. In other words, treat our advice as suggestions for further research. as V said, pain is a sign that something is going on and your doctors not listening is just not good enough. Perhaps you need to see another doctor - I would suggest a referral to a rheumatologist. It's not that I think you have RA, but they know a lot about conditions that can cause pain in different ways, more so than your family doctor and may therefore be able to get an idea of what's going on, it eliminates possibilities and so on.

I think I need to know more about your symptoms in order to give you good advice. Does this only happen when you sleep? What if you lie down for an hour to rest? Have you tried a different mattress? Have you had x-rays of your back/hips/knees? Do you ever have symptoms during the day or doing something else? Is the pain in your muscles or joints/bones?