Try and find a pain management specialist or neurologist in your area. The best way to go about it is to contact your local hospital. Make an appointment, or make several. Time is key right now. The RSD might be spreading if you are starting to have the same symptoms elsewhere on your body. Pain management specialists, neurologists, rheumatologists, they are most familiar with the condition. If you can't do this on your own, then ask your parents to help you. If they won't help you... well you *are* 17. You need medical attention first and foremost. We can't help you with that. That's your responsibility.

Try and read up on RSD in the mean time. Your best chance right now is information and education and the help from an RSD knowledgeable doctor.
http://www.rsds.org
http://www.rsdhope.org

Good luck in finding one!