Gidday,
Son I don't want to worry you but I was your age when a cardiology examination put me out of RAAF contention.
the
GOOD news is that my bicuspid aortic valve (with mild regurgitation ejection click, aparrently) has not affected my Aviation career as a commercial pilot.
Wingman683, a RBBB is not a murmur - it is an electrical discrepancy in the cardiac tissue and can be transient. I had one show up on an ECG once, but never again, and can be merely an error in positioning the leads on your chest.
A heart murmur (in my case) was, as said above, an altered heart sound - instead of flub-dub, flub-dub, my heart says "flub-dubub, flub-dubub". I recall reading somewhere that a split
second sound is the aortic valve, and a split
first sound is the mitral valve.
A bicuspid aortic valve is sometimes associated with minor weaknesses in the connective tissue that forms your arteries. This is only experienced by about 5% of people with bicuspid valves, I am told.
Guess which group I am in?
The good news, again, is that these things are fixable.
Good luck and be sure to report back with your Cardio's report.