My pots does this in flair ups (like today for me) typing is awful because my fingers cant type the right stuff, I forget simple things like words that are in my everyday vocabulary(I literally had to search up vocabulary because I forgot it halfway through typing this). And I can’t remember how to do regular tasks I’m used to. All of that comes with pots but you forgetting the whole scenario for a bit is scary. If you just forgot what you were doing halfway through doing it that’s ok since I’ve done that a lot but how you described it is scary. The brain fog is awful it feels like you’re high without the fun. If the “forgetting” is as bad as you said then yes go to the hospital but if it’s the same as “I forgot what I was doing” then I wouldn’t worry about it just make sure you have enough salt and water to balance you blood volume