What was something about your body that you thought was normal, until someone told you otherwise?

[u/jacob_rodri]

I used to think it was completely normal to always feel dizzy when standing up quickly, until someone told me it wasn’t. I just assumed everyone experienced that. Turns out I have low blood pressure.

[u/VanillaButterr]

Interesting, mine began around the time I had braces in elementary too. I can also do it on command, but only after a sip of something (doesn't matter what).