Why Is This Happening to Me?

Gosh, lately, I have been the moodiest bitch that has ever stepped on the face of the earth. And no, it's not because I'm bi-polar or on my period. It's cause I've been PARANOID! I've been feeling all of these aches and pains, that are kind of unexplainable. And I hate it when no one believes me. It's not like I want to be paranoid or something. I mean, who would want to be?! Who would want to feel that something's physically wrong with them every second? Yeah, no one. I've been getting all these chest pains, around my heart area since Saturday, and it just aches like crazy. And no, it's not boob pain -_- And pains around my joints. And no, I stopped growing, so they're not growing pains. It's just like one minute, my chest feels compressed and the next, my knees are feeling a shooting pain, and later, I get a tension headache. Wtheck. It's driving me crazy. I was like fine 2 weeks ago, and now I'm just struggling to make it through one day. Luckily, mostly everyone has been kind of helping me get through this phase of mine, this phase I never ever want to relive. I can't sleep, I lose my appetite, I'm tired, I struggle through school work, I feel like I can't breathe, I feel like my life could be ending in seconds, and I'm just a crazy psychotic bitch. FOR NOW, AT LEAST. I went to the doctor yesterday, and she gave me a blood test. Getting an X-ray next week, so let's hope I can cope til then. Gosh, I just wished my life could be put back in check.