I relate. My mother in law had a 13 hour surgery 3.5 weeks ago, and has remained in intensive care. Multiple complications. She turned 90 a couple of days after the surgery, btw.
My own mother fainted 3 nights ago, and my sister had to call 911 for the paramedics to take her to emergency for a few hours. Dehydration from some bug. My mother is 92 yrs of age.
So basically there is nothing really to do, but persevere whatever occurs over the following days, weeks, months or years. One thing fairly certain is there aren’t many of them.
I recall a conversation years ago with my paternal grandmother. She was over 90 at the time, and confided that her life wasn’t fun any more, and she was ready for the end. She lived to 95.
From what I have seen of those 3 cases of years after 90, I am not looking forward to it.
I am praying, and would also appreciate prayers for my 95 year old mom who is as sharp as she ever was, but is declining rapidly in strength. She lives with me, is my best friend, abd I don’t know how I will cope when she does pass.