What are the chances that I have acute myocardial infarction?

I'm 16 years old. In shape. History of heart disease on both sides. Feeling uncomfort in chest, but not pain. Feeling nauxious suddenly at times. Worried as hell.

My heart rate is normal. 60-80 bpm.

The chances that you have had an MI are very slim, particularly considering that you often excercise. If you had prior MIs, you would experience many symptoms during your excercise. Also, your family history of heart disease is virtually irrelevant if it is a history of coronary artery disease which is the most common heart disease history. Since you are 16, you would not have coronary artery disease, although you could have some acute condition such as hypertrophic obstructive cardiomyopathy. Your hands turning blue when you're cold could indicate a disease process called Reynaud's disease. I wouldn't worry though.

Go get a physical from your doctor. Don't smoke.

Heart attacks in 16 year olds are not common...but you could very well be one of those 350 pound fellas i see on Oprah at age 16. Heart attack pain commonly referrs pain to the TMJ (jaw joint by the ear) or into the left arm. The feeling of anxiety or stress is associated. I remember a story of an old lady who walked to a pharmacy for some tums to ease her stomach and shes was actually having a MI (myocardial infarction).
In other words...if you are concerned...and especially if you are in a high risk group (ie fam history, obese) consult your primary doctor.
Performing blood work to look for elevated enzymes that are released with muscle damage is the for sure way to know. You could even be having an irregular rhythm of your heart beat...that can also make some nauseated.

The family history of heart disease means that you are at risk.

Looks like you are starting to have to have a transient ischemia attack probably in your brain....because of the absence of chest pain.

Your chances of ACI would be about 55 percent. It would be down to about 25 percent if not for your family history.

I say you better go to a doctor soon...perhaps a specialist, so, a cardiologist.

Best to go to a heart-scan center that will look into your heart and how good or bad it is. That means an MRI exam or something.

Best to do that than to face a very costly hospital bill for a heart attack or stroke.......which could cost you your life.