I just returned from visiting mom in Florida and received an email from a friend asking me how it was. I replied:

My sister had been there for three months and left on Sunday morning. So when I left Florida I was basically leaving my mom all alone.
It was far, far worse than anything else I have ever done in my life. It was easily the worst weekend of my life.
Leaving my mom at the rehab place, sitting alone in a cafeteria staring into space, not knowing if at any point over the days I was there whether she really knew who I was, was the hardest thing I’ve ever done.
And then when we landed a few hours ago there was a voice mail from the rehab place telling me that they took her to the ER a few hours after I left because she was wheezing and congested and couldn’t breathe. So now I’m waiting to hear from the ER doctor.