So Mother was rushed to the ER yesterday.  She was complaining about being quite dizzy.  When the EMTs came, she said she had very low blood pressure.

She got stabilized at the hospital close to us.  I had work, but she looked like she was stabilized, plus, thank Buddha, my sister was there with her.

Mother got out four, five hours later.  Side effect from her medication, not enough water, constipation ... it looks as though it was a combination of all those things.  She seems fine now, but that reason seems a bit too vague for me, and I'm scared that she will have a relapse again -- especially today, since sister is out with family and took my car (again).

I hope Mother is getting better, because I can't tell.