I'm 21 years old and over the last year or so I've been experiencing extreme effects after drinking. A few hours to a day after j have a drink, I will feel suddenly feel very sad. I usually have some narrative going on in my head about what i could be upset about, but the feeling I have is unmistakable. I will cry uncontrollably and sometimes experience a panic attack. I have stopped drinking regularly and have only had a couple drinks since the New Year. I just wonder what could be causing this reaction whether I've developed an intolerance or if there is something with my brain chemistry.