>>2019556413 year alcoholic here. Quit on April 10th due to jaundice and a trip to the E.R. Your stomach physically hurts after a while and you get a ton of empty calories from the booze so you never really feel hungry. Food smells and looks repulsive. I could only force down food if I was super drunk and any time I wasn't drunk I was super hung over so food was of course repulsive. I drank between 2 pints and a handle of vodka per day for 8 of those 13 years.
It's a terrible life and I'm glad to be out of it. It's hard every day to maintain sobriety but it must be done. Many of the people you know like that won't be around for much longer.