Hi Ashley:
I am so sorry you have to go through this at such a young age. I wasn't diagnosed at your age but looking back did have flare ups like you are talking about. I did get flu like and I think it is because after being in pain for so many days, not eating or drinking properly one gets nauseaus. I stll get that way when my neck and shoulders flare up because i will get a headache and then the nauseausness. This sight is a great sight for understanding, sympathy and just listening.
Welcome and I hope you will find some releif soon.
God Bless

Tammy McNaught