Video game reviewer Tim Rogers has some unpleasant memory condition where he remembers dates, numbers, etc. perfectly but also compulsively recalls old memories all day.

It's not quite like this, he said it's not a photographic memory, but it seems interesting. I read a story where he said he knew exactly how many cinnamon buns he'd ever eaten. I thought it was perhaps fiction, but there was a photo at the end implying it was real.

I think he explains it in his review of the PS1 game "Boku no natsuyasumi"