hi my name is pmkm, i am only 17 years old, yesterday i went summing all day, and after i fell asleep i woke up crying from my chest hurting so bad, it felt tight and like someone was stepping on it. my chess allways hurts time to time but it never been this bad, i cant really run but so far before i am so tried that i want to cry, i am not fat or anything like that but i dont know whats going on