Afib episodes and memory issues

Hi
Any body have the following
I had something happen to 2 1/2 years ago I became space out like a ZOMBIE .
lost a-lot of my short term memory before that I had above average IQ an shortly after got AFIB now started to notice over the years that each time after a bout of afib my memory comes back. little by little anyone experience this ?
Ps 2 years ago to write this would have taken me over an hour to write.
Stay Safe everyone