I have had something similar because I made a desperate attempt in my 20’s
I think anyone that does attempt will likely always get a flash or a reminder of what happened in the day(s) or hours prior to acting whether it be a place/store or in my case it was a particular food.
If you can objectively look at it and process it and know it’s just a flash then I’d probably go with out prn, but if it has left me tilted sideways I’d go ahead and take one.
Are you feeling better now ?? More settled ???
It’s very possible the Joker movie churned up some emotions that your still recovering from ??? I know that really rattled you.