I ate whatever I wanted because quitting drinking was super hard already.
Mentally, I felt like I was tired, but physically I had more energy and stamina then ever because the poison was out of my system.
I laid around a bunch, all the time. Naps esp. because I didn't sleep well for several months. But, poor sober sleep is better than a bunch of drunk sleep.
So, eat whatever you want, but try to work out. It also helps with the anxiety etc. Booze alters our chemical balance for a long long time after we quit.
Thanks.