My late BIL was obsessed with "defragging" his laptop and now whenever I do very similar forgetful things like your experience Alwaysworrying I mutter " you want defragging lady" to myself.
My theory is that it's all there, stowed away in our heads, but it's the recall that's the issue hence, if we could defragg it would create a lot more space to mentally root around and find stuff.
Thinking about fostering – confused about allowance & agencies




Goodness me, you say you’ve got a lot of stress in your life, so getting the odd thing wrong is quite understandable. Unless there are lots of other examples of your getting more forgetful, your friend is being a bit ridiculous, imho. And quite unkind to have you worrying like this.