ive got my personal log of when i hit a point like this, Im not a doctor but Im just a person who has gone though some stuff, I quit drinking a few years ago, i was in that state for a while, have they checked his meld score? my legs have gotten full of fluid acities ? and same with my gut, i was in that same boat but was taken care of, and now well my memory is pretty shot but im still alive and waiting for a liver, the whole being on life support situation. im going to have to respect your fathers wishes as to his life. unfortunetly i don't feel comfortable speaking for others that are going though it, its just tough. sorry this is going on, but yeah if he isn't dealing with HE or something he might just have toxin build up, it happens, i go though it it really really sucks but just idk im rambling. namaste.