Welcome to NeuroTalk.
You experience is very common. The drinking is a common PCS problem. The concussed brain is very sensitive to alcohol and the toxins in alcohol.
You should consider making two changes in your life.
First, no alcohol for a few moths. When you are feeling better, one serving per day may be tolerable. Avoid all alcohol if having a single drink leaves you with a hung-over feeling. This is highly likely to happen.
Second, You need to stop any contact sports or other risks of impacts to your head. You may be more tolerant after a year or two.
There are more things for you to consider but this will be a good start. Others will likely tell you about their experiences.
When you are symptomatic, you need quiet rest. B vitamins will also be good.
So, take it easy and learn to live a more disciplined life. Your brain will thank you.
My best to you.
Mark in Idaho
58 years old, retired due to disability, married 33 years, father of three, grandfather of four, Suffered a serious concussion at 10 years old (1965) stopped most driving after last concussion at 46 years old (2001), Post Concussion Syndrome/Multiple Concussion/Impact Syndrome with PTSD, immediate and short term visual and auditory memory problems, slowed processing speed, visual and auditory processing difficulties, insomnia, absence seizures, OCD, 14 concussions since first concussion at 8 years old, Taking paroxetine and gabapentin for 12 years. Added L-Tryptophan and reduced paroxetine by half 3/2013
"Be Still and Know That I am God" Psalm 46:10