You just noticed this over the past two weeks alex?

I don't know what she's on, but she's on something and has been for a long time. I know she's got a bad back, and based on my admittedly non-clinical experience her behavior mirrors someone who's a heavy user of prescription pain killers. She had an on-camera freak out about a year ago after a particularly disastrous satellite media tour and she was openly accused of being on drugs. I thought her vehement (yet carefully worded) denial was telling: "I have
never used recreational drugs!" Operative word there, I think, was 'recreational.' Many people who grow addicted to prescription meds don't think of themselves as "drug users" in the classic sense.
I've worked with her a few times and it's amazing to watch her process information whenever someone speaks to her. It's like her brain is still running on a 14.4 baud modem while everybody else has gone broadband.