Reliefbound,
Have you seen more than one specialist/doctor for this? I am sure there are other things going on, perhaps diabetes? High blood pressure? Vericose veins? Some silly injury that you missed. Do you were those, all to sexy, ted hose? If so, to the knee, or to the thigh. The vascular surgeon seems like a good place to start.
I used to take neurontin for years but its made me so I have trouble thinking of.... um.... um..... OH! words.
Good luck, my prayers are getting longer and longer please keep us all posted.
Perhaps, through some twist of fate, this incident has brought things to attention that you did not even know about
and will be helpful in the end.