What Causes Difficulty Breathing Along With Pain In Chest?

Hi,my name is Nariman!
I've been having troubles in breathing and my chest hurts me and i have pain in my heart and sometimes my head feels dizzy or heavy!
I have troubles with sleeping too,i mean i can sleep very well but the problem is that whenever i sleep it is hard to wake up,recently i can't hear the voice of anything though my parents and my little sister tried many times to wake me up but it take them hours to wake me up!I wasn't like this before what's happening,my body is kinda weird these days!it doesn't react as i want sometimes my heartbeat arise so quickly while doing just usual chores i do and it makes it hard for me to stand and breath normal!
My parents think i am becoming a bad person when i tell them that i really don't make up these things they think i am just faking it and too lazy to live while i am really trying hardly to figure out the problem!
I neeed help ,please someone give me an answer what should i do !