Yep I got to know the stages of my hangovers/withdrawals very very well . I got to the point that I could predict how I would feel and look on ever day going through it. I was a massive binge drinker, would drink for about two days straight then go through the most awful hangover the week after, it,would often take me over a week to feel back to normal. I knew this in advance and it didn't stop
me drinking, total madness!