Well, I'd just as soon return to this planet, Noddy.
hmmm, sleep deprivation - probably also a factor.
First I noticed an issue with name recall. I can be in the middle of a conversation with someone I know well and forget their name
Then I began struggling to recall words I know perfectly well.
More recently, it's been spelling and grammar; things like you're and your, tenses, and so on. It drives me nuts to read something I've written and try to imagine how lucid thoughts translated to what shows up on the screen. Preview doesn't help, my brain knows what I wanted to say and sends that message to my eyes. Spellcheck helps with spelling but not with tenses, etc. It's very frustrating.