Welcome to fibroland, I think you are going to love it here. We are fibromites, in a community where everyone understands each other.
I don't have any cycle or pattern to my flares, they seem to just happen. I am very limited in what I can do, so I know when I have overdone it. It is a very good idea to keep a journal, especially since you are new to fibro. Not only does weather affect it, but certain foods can as well.
Don't be shy here, just tell it like it is, we have all been there before. Feel better!