Based on those symptoms, it could be heartburn, acid reflux, tonsillitis, thermal burns, esophagitis, viral pharyngitis, panic attack, bleeding esophageal varices, dermatomyositis, epiglottis, or even something as obscure as scarlet fever. Really it could be anything. But as young as you are, it's probably just heartburn, so don't freak out too much.
But! If you experience blood in the mouth, trouble breathing, shooting pain in the arm, or stiffness in the neck, CALL 9-1-1 IMMEDIATELY. My husband is a 9-1-1 dispatcher; I know some about this crap.
If you know your insurance carrier, just go to their website and give them a call, they can tell you who your primary care doctor is.