somewhere I read or was told (I don't remember) that with cf, when o2 sats drop even slightly your memory can be effected. It seems to be consistant with what I do and don't remember though, the sicker I was the less I remember about whatever event. I also don't usually remember telling people things or details about stuff. I have plenty of those moments where "I know I told someone I would do something or help with something today but I don't remember who or what" until they call asking where I am then its "oh yeah..." but I don't know that that is cf related