I have had FM for about 8 years but I have just recently been diagnosed. What exactly is a flair. My muscles ache all of the time so am I just in a constant flair. I do have this horrible burning pain all over my body that last about 2 weeks at a time (I can't get out of bed) Is that a flair and just my muscles aching is my baseline? What exactly is a remission then? Do your symptoms totally go away? If my muscles ache does that mean I'm in remission because this is my baseline. I just was wandering how you can tell the difference and what constitutes a good day as opposed to a bad. Please help.