Hello. Good to read you went to your doctor.
I'm not sure from your post if you've recently stopped drinking or you've been sober for a spell.
Regardless, drinking takes a toll on the body...it may be a while before you feel better.
I wasn't end-stage...but it was several months before my bowel problems improved. I still have mental fog from time to time...but things are improving. Hang in there...and pester your doctor if you still feel extra sleepy.
You can function without alcohol. Take care of youself.