Question
when do the thoughts stop

Answer
Rex,

I am writing on behalf of Mr Mckinzie. He is presently in ICU and is not able to read or respond to any questions. Sorry for the inconvenience.

PS When I read your question I felt compelled to see John at the hospital and ask him what he would say to you. His reply to your question, when do the thoughts stop? was this:
"Sometimes they never stop. You have to fight though them.
It's never easy. That's why I am fighting for my life, because I won't give up."
I hope Mr McKinzie's words are of some encouragement to you.