This is very close to my experience. I played rugby for 10 years and had multiple concussions (2 that knocked me out). After one concussion I went through a pe

This is very close to my experience. I played rugby for 10 years and had multiple concussions (2 that knocked me out). After one concussion I went through a period where I would get emotional and angry, especially when drinking (i.e. have 2 beers, black out, and then black-in crying). I quit drinking about 2 years ago (I'm in my early 30s) and the mental clarity has been incredible. I had a tendency to drink heavily when I drank (about weekly) and so if you're struggling with memory issues I'd suggest giving sobriety a chance for a month or two to see if it makes a difference.