Whats really wrong with me?

Im a 15 yr old female, and Ive never really felt like there was something or anything wrong with me. The last couple of months, I've been depressed and having what I think is "Anxiety". I recently was forced to move away from all my friends to another state and start a new school, When I first moved here I was having terrible headaches(stabbing pain in my head, it felt like something was moving or growing!)and was seriously considering that I had a brain tumor or something, and I was even afraid to fall to sleep at night because I thought that I might not wake up. (my step dad was forcibly removed from our home,((long story)) so we had to move here to be closer to family, thats what i thought was causing the stress...?) after a while the heaches had gone away, but Now Ive been having different headaches that have been making it difficult to do anything, anymore. My eyes hurt from light(even something thts not very bright) my head hurt worse if one of my brothers or sisters were arguing or screaming at eachother......I had a very short fuse, and would go off on anybody....well I finally convinced my mom to take me to the ER....I had a C.A.T. scan and they said there was nothing wrong, they gave me a prescription for Tylenol/codeine...and sent me on my way. The pills werent really doing anything, except taking away the pain from that specific spot, and moving it to another. Now, about 2 or 3 weeks later, I'm starting to having Jabbing pains in my heart, coming from under neath of my heart, it feels like....(Ive had these before in recent months, my pediatrician said they were growing pains or something...?)....sometimes at night I get freezing cold, my teeth chatter and my muscles in my thighs shake, during the headaches I get pains in my neck, or the bottom of my spine, my ears wont "Pop", and it feels like something's pulling at the back of my eyes, making them Hurt. But right now, im having a pain in my temple, and the ear on that side(left) hurts and feels like a strong ear infection coming on, my stomch also feels weird.....I've also been "Panicky" thinking about death, or how I might die at any second....idk, is there anyone who can tell me whats wrong with me?? My friends thinks its a sinus infection or something, but im not sure....(oh and ive also been having weird pain or kinda throbbing on both sides of my jaw bone, its not that painful but now thats got me deathly afraid and thinking i have LOCK JAW or something...) everyone around me calling me a drama queen and saying i'm just lying for attention is not really helping the situation.....I just sit alone and cry all the time because i don't know whats wrong with me......Can someone tell me????Im srry this is so long...:\