A couple of years ago, a medical student was shadowing my regular doctor. The student saw me first, and asked to do an exam (the doctor wasn't in the room). I said yes, and he went ahead with the typical stuff.
I'm a young, fit guy with no health issues, so my exams are usually pretty cursory. So, I was surprised when the student listened to my heart for a *long* time. I thought maybe he was just being a thorough student, but when he started feeling my radial pulse at the same time, I suspected that he thought he'd found a murmur. I was 32, I'd never been told that I have a murmur, and I know what my own heart sounds like because I listen to it a lot, so I was a bit suspicious.
Here's how the conversation went:
Student [removing the stethoscope]: "Has anyone ever told you that you have a heart murmur?"
Me: "No."
Student: "Well, you do."
Me: "Huh, okay."
Student: "You're awfully calm about this. Most people get really worried when I tell them they have a heart murmur."
Me [thinking: How many people have you told for the first time that they have a heart murmur? Do you really think that you as a third-year medical student are finding things that lots of other doctors have missed throughout these people's lives?]
Me: [out loud] "Well, just few months ago I was riding my bike 50 miles a week and training 10 hours a week in a very cardio-intense martial arts school, so if it was going to cause problems, I would think it would have caused problems then. Unless something really serious could have developed in the past couple of months?"
Student: "If you never felt any light-headedness or passed out doing that, then it's probably benign."
The student left, and the real doctor came in. He asked me how the student was, if I felt comfortable interacting with him, etc.
Me: "He was fine. He told me I have a heart murmur though."
Doctor: [rolls his eyes and sighs] "Medical students..."
The doctor gave me a slightly longer-than-usual listen and said, "You're fine."
He said that my second heart sound is a little louder than in most people, and that's probably what the student was hearing. Now that he's pointed that out, I can hear that there is a slight difference between my heart sounds and recordings I've heard of other people's hearts, which I'd never noticed before.