Do you believe in eidetic/photographic memory?

Speaking as someone with a ridiculous memory for specifics and details, no. I don't think anyone could function with eidetic memory and even having a really good memory is difficult. The ability to forget should not be underestimated.

I knew a woman who said she had a photographic memory but she said that she did not have the IQ to take advantage of it. She remembered a lot of stuff but it was just information to her. She worked in general office jobs. She did not seem to be any sharper than most or have any particular extra ordinary talent.

There are documented cases of people that can remember every day of their lives. I remember a kid that was interviewed. He said he remembered all the best days of his life but the downside was that he also remembered all the worst days of his life too.

If I'm given those choices, I think I will pick my forgetful memory.

I'm not sure. But as a child, I didn't understand what it meant to "study" for a test. Didn't you read the book? Just look at the book in your head!

That sort of visual memory declined sharply after puberty.

I was still pretty good at memorizing things; in high school, memorizing lines for drama productions. But that was nothing like the visual memory that I used to have.

Almost certain that this isn't quite what is meant by photographic memory, but I wonder if what I experienced was anything at all related.

It's absolutely true that there are people with extraordinary memory abilities. The interesting question is whether or not that's a learnable skill. I suspect it is.