okay so I am 19 years old. I have played football for most of my life and have had some concussions here and there. but I've had a really bad one about 2 years ago where I got hit with my helmet off. and I've had really bad headaches ever since. I went to the hospital that day and they said my brain was just swollen and they gave me antibiotics and left me to go home.well I have had really bad headaches ever sense in the back of my head and spreads to the top of my head sometimes. well now with the headaches in the back of my head there is a little sharp pain going down my neck. and I have kind of been getting angry a lot easier but I don't think that has to do anything but I don't know. I just need some advice on what to do or what's going on.