Hello dulciana.
I have certainly noticed my concentration levels have fallen and I'm nowhere near as sharp mentally as I was, finding the right word is a struggle most of the time.
As I've mentioned before there a fifty sites in the brain that respond to oestrogen levels so when levels change some re-wiring is inevitable I suppose.
Maybe we should all put a sign on our foreheads saying 'Closed for Alterations'.
Wishing you well.
K.