Re: hi i have a question
Have you actually asked your parents to help you with paying for your doctor visit?
If not...Look into your states low/no income medical services (Medicaid/social services). You may have to fill out a lot of forms, and jump through some hoops, but once you qualify, you will receive appropriate medical care for little or no charge.
There are also "free clinics" in most cities. Just take a walk through your phone book under "county medical services". There is help out there for you...you just have to do a little searching, and make a few phone calls...most of these places can direct you to the proper service providers, and are very helpful.
Don't give up until you get yourself a diagnosis, and let us know how it goes. Good luck!