I was in dress shoes today, but with only about 1/2" heels. I was in a store for almost an hour when my low back and below started bothering me, like I was just standing for too long. Shortly after, all of a sudden, my WHOLE BODY was hurting and I couldn't wait to get out of there! In fact, while I was waiting in line for the cashier, I squatted down so I wouldn't be standing, but I was still hurting all over and tired. Is this typical of FMS? The "all over" isn't typical of rheumatoid arthritis, which I also have.