You are known to have a disorder, USHA, Underlying Small Heart Attacks, (Not real just made up), you have been struggling with it since you were 7, sometimes it was really painful and you had to go to the hospital,not many people believed you, they thought you just wanted attention and sound like it revolves around you
At school you told the nurse about your disorder, she said if you get one you can just stay calm, if its to much pressure to move you have to stay still until you are ready. A few months later you are in math class, you get a small heart attack, you stop moving, dropping your pencil, but this time its getting worse by the second, you can't breath too much but this time you can't even breath through you nose or mouth
Students look at you, confused and shocked, some snicker while others start to get worried. Slowly and slowly blood drips out your mouth