Hi, I'm only 14 years old but I get the aching in my chest and then all of a sudden it feels like something jumped(It's the only way i can describe it) afterwards i feel like i can't breathe, the aching goes on for a couple more hours and it feels like someones pulling inside my chest. I go quite hot and my heart beat goes really wierd and not like it normaly is. Is there something wrong with me? It's happened twice so far. The second time much worse then the first. Heart disease runs in my family and i have high blood pressure according to my science teacher. I also feel tired and exausted all the time. I find it really difficult sleep. I'm not over weight but i eat alot of unhealthy food.