Sorry to hear your mother needs to stay more in the hospital. Those places are strange and whole universe universes where so many things happen some beautiful, some very sad, other funny or cheerful. I had to be there a lot for both my parents. We had to be vigilent so many mistakes were done by the overtired medical teams.
And I found the brain issues of my mother very much hard to endure than any other illness of theirs.
Your parents are lucky you can be free to be there this much for them.
You and your family will be in my prayers .
And I'm sure your humour will be a precious help for each and every one around.