i am 19 years old, but i feel so much older. I'm tired all the time, but I can't fall asleep, and when I finally do I'll sleep for 12 or more hours. I get lighthead all of the time. I have headaches with pressure on my ears and jaw bone. I cramp like I am having my period when i'm not. I gag for no reason at all. My rib cage hurts while i'm sitting, its not a deep pain but an uncomfortable one anyways. what could be wrong with me?
Please answer