Hi my name is nikky I am 16 years old, I failed my physical due to a heart murmur and I am always having dizziness, shortness of breath,chest pains, and feeling like im going to pass out when I play basketball this has been going on for a year and could those symptoms have anything to due with the murmur or could it be asthma? I haven't been to the doctor because I'm scared that I might get bad news and because I've been like this for a year and nothing has happened. Please tell me what's going on if anyone knows thanks in advance