I noticed that too. She looked like a ghost. Seems alcohol is taking a toll.
I don't suspect alcohol anymore and haven't for awhile. I think she has continued health issues and I would doubt that she'd be able to continue drinking on meds. When she ran back in '16 she was late to several of her rallies, teetered getting in and off the plane, teetered around a group of her supporters and stumbled getting into a car -- I don't think those were drunken episodes but the effects of medication and/or ill health.
Her face is rounded (possibly steroids as I mentioned earlier), but she appears to have lost weight in her upper body. She's 72. If she were wise she'd spend time with her daughter and those grand babies with the time that she has left.