I sometimes feel like I have dementia. I think I feel scared because I've listened to an audiobook before about a woman in her 30s who got dementia, and I don't think it was fiction.
But I think it's just the ADHD. Like the other night my aunt phoned me before I was going to have my dinner, and I took the phone into the bedroom to chat, still holding the fork. Then I left the fork on my bedside table and it was there for a couple of days before my partner noticed it and put it back where it belongs.
I did see that I had left it there and kept making a mental note to myself to take it back to the kitchen, but one second later I forgot.
Or like the other night I was running a bath, and as I switched on the taps I thought "oh, I better charge my electric toothbrush while I'm bathing so that it'll be charged when I come out", but then I immediately forgot, and walked around the flat in a state of confusion because I knew I had made a mental note to do such a small task but had forgotten what it was. So I shrugged and thought "oh it's probably nothing, I have everything I need" and got into the bath.
Then when I got out and went to brush my teeth, it was uncharged, and that was then I thought "so that was what I was meant to do before I got in the bath!" This happens all the time. I think the smallest, simplest tasks are easier for me to forget, while bigger tasks are easier to remember to do. I never forget to eat or cook or clean out my pets, but I forget to flick a switch to charge my toothbrush.
People will often say "it's such an easy task, why would you not do it?" But I just forget to do these easy tasks, even if I write a note. I'll probably read the note, throw it away, then forget to do it anyway.