#1: Asthma
It’s always good to mention something bothering you to your doctor. You never know what kind of knowledge they can impart to your life. This story is proof. This guy never took up running as a form of exercise because he believed he just wasn’t good at it. This weird thing would happen: His throat would seize up, and he couldn’t breathe.

One day, he casually mentioned it to his doctor. Turns out, that pain and breathlessness? It was asthma all along. Oh, and get this—he was 30 when he finally brought it up. It’s not about being paranoid, but it’s important to talk to your doctor about anything that worries you or affects your daily life!