You are correct, some people can have both FMS and MS. There is certainly no harm done if hurtsobad gets checked out for MS. I'm just stating that the expert at the seminar that I attended yesterday said that MS is the most misdiagnosed disease for people w/FMS.
Also, from a personal perspective, a have a friend with MS, and pain is not among her symptoms. She LOOKS like she's in pain, but she says that she is not.