I had a bad fall a few years ago, got a pretty nasty bump on the back of my head. a week or so later I had a nose bleed so bad I could only stop it by pressing the spot inside my upper lip under my nose. now I worry that has caused a blood clot so that I now hear my heartbeat in left ear, loudly. I also have high blood pressure and an aortic aneurysm. I'm scheduled to have a check up with a specialist who will look at the internals, like my veins, etc.