DTs are serious symptoms, she is getting beyond simply needing an AA sponser if she has this.
She might indeed have medical problems such as a brain tumor or dementia — these symptoms can look like symptoms of drug or alcohol abuse. Or the victims can try to cover up the problem with substance abuse. I had an uncle who started behaving strangely...he liked to drink and most assumed that his problems stemmed from too many beers. His brain tumor wasn’t discovered until it was too late.
I was not aware they were so bad! You’re talking detox, I suppose?