How soon is your B-Day? Once you turn 18 you don't need your parents/gaurdian to sign anything. You will be considered an adult, and you can do what you want...make decisions about medial treatment.
I would go to an ob/gyn...maybe they can tell you why all those tests came back positive. That is just so weird, but it just tells you that something is not behaving properly. My endo said that PCOS can trick your body into believing that you're half pregnant (i.e. wieght gain).
Take Care, and Good Luck!
