I'm glad you know what is going on at last but

what a difficult thing to hear, and even more, to live with ...
I haven't even heard of stills disease before so was just reading about it before replying ... maybe this group can point you to someone or a group in your area that can give you some much needed support?
International Still's Disease Foundation, Inc.
I'm sorry your parents aren't being more supportive ... especially when they know themselves the pain of illness
like healing mentioned ... it stinks ... all of it does