I don't know what's going on

Today has been one of the worst days of my life- and for no reason. Aside from the day it happened, I was in the hospital and when my mom found out what happened today was the worst day ever. I got so angry at my mom and screamed at her in the car and I don't even remember why. My anger has been so bad and my mom has seen it yet she doesn't believe me when I day there's something wrong with me. It's not depression. I'm moving on from what happened and my life is good. That's why I don't understand. I also get horrible headaches everyday that won't go away. I took 800 milligrams of motrin and that only made the pain go down a little bit. I either sleep too much or hardly at all. But worst out of these is my anger, then the headaches.