Honestly, I tend to agree more with Hazzmat.
Pain in the groin area can be signs of many things including but not limited to cysts, hernia's, blocked arteries or clots and or pulled muscles.
If it is real painful and you are not comfortable with your doctor definately seek out a second opinion.
As far as the back/neck problem and wrists, well it could be FMS but it could also be an impingement or herniation of the C-spine which has the same symptoms, paticularly numbness of the digits.
A lumbar problem wouldn't cause groin pain but hip and back of the leg pain in addition to lower back so I doubt that's the issue.
FMS and CFS has a host of painful symptoms in various joints and areas that are not characterized by any redness or swelling. If in doubt see a rhuematologist who specializes in FMS to be "tested".
There's no blood test at this point in time for it, but more of a series of ruling out other illnesses. Check out the FMS board here for better information
Best of luck