I know I did certain things but my memory is basically non existent. Is this normal? For instance I didn’t remember visiting the Tower of London until I was there again not long ago. My memory is generally excellent and I can recall details well enough. I wanted to watch an anime I watched a few years ago but only remember the first two or three episodes, the rest I may as well be watching for the first time. Is this normal? I just seen to have odd gaps that I should remember like the towe of London visit.