bone pain with normal x-ray

Hi,
I've had pain the CMC joint of my thumb for about 4 weeks, it's been x-rayed and come back normal.  I don't have any limitation of movement, and there is not sensation of heat and no inflamation (inflammation) of the tissue around it.  I also have unresponsive pain in my legs, which has not yet been identified.  I have been suffering chronic fatigue for over a year, so obviously it might be something to do with that, but I am concerned because the pain is unresponsive to my usual pain control regime.

Any help or suggestions would be appreciated