Is it normal that i can read people??

Okay so, I'll try to keep this short. So whenever I meet someone new for some weird reason I am able to tell exactly what they're like and what they've been through I guess, I'm not saying I judge them rudely because I'm a very accepting person! But after getting to know them I get really scared because my prediction about them is dead on.. it's not even something I control, my mind just analyzes them on its own. I started to do this about 2 years ago, right after my depression kind of faded away (idk if that's related or not)
But lately I've been using whatever this is to help people, through things like depression and anxiety and troubles at home and it looks like I'm pretty good at it, whatever this is called has made me really selfless.
Sorry for the long story but I just don't know what this is and why I'm able to do this and if it's normal or not I'm just confused as to why this is always dead on accurate. Thanks :)