Im 15 and I ve had a tight chest and bad heart pains for the past month or so. it feels like i have a 100 pound weight on my chest ALL THE TIME which goes from the side of my armpit to the top of my stomache. I cant sleep well and i feel like even when i take enormously large deep breaths i still dont get enough oxygen. every time i sit down and get up i have to take a deep breath and i get light headed and lose all the sight in my eyes for about 3 seconds. the losing sight in my eyes scares me alot. I also check my heart beat all the time and it seems like it spikes and slows down randomly. ive never had an anxiety attack before but last night and the night before i think i did because i could hardly breath. i tell my parents about it but they wont think anything of it. There both paramedics and i think they THINK they know everything there is about health but im sure they dont. ive had child hood asthma but i pretty much dont have it anymore but i still keep a inhaler, ive thought the chest pains might be some asthma or bronchitis but i use it and i feel no relief whatsoever. my parents dont even listen to what i have to say, i start to talk about it and they just say i complain about being sick all the time. im getting tired of them doing this and im thinking about calling 911 just to show them how serious i am about this. please get back if you think you know what might be wrong. Also you should deffinetly know that i took alot of speed about 2 weeks ago and it has deffinetly gotten worse, i took 3 and a half 20mg adderall rx pills and i think i might have had a overdose. ive also had extreme dry mouth and have developed a sore throat yesterday.