Quick help.

So I just have a question,

How can I be sure I am not in danger of heart attack?

I have been to a doctor bcs of weird feeling in chest and she said it is because of my back. I did blood test and ECG, all normal. There is no history of heart attack in my family. Can you please help me? I am 15 and very worried.

I'm 16 have been worrying about everything including heart disease and heart attack. Are you overweight. I think chances are very high in teen, especially if you have no family history and your tests are normal. Easy to say, but calm down. I put the heart problems behind for a few days and I don't really feel the symptoms anymore. Maybe what you are feeling just anxiety. Sometimes, I worry about something so much, like yellow skin, I start to "see" it. Well, I don't have a yellowish/golden undertone so whatever. Anxiety can cause some weird feelings and pain.