when I was a child, I was known for remembering things told to me- phone numbers, addresses, tv skedules, if you needed to know something, just ask me- my memory was quite good back then.

when I got diagnosed with bipolar, the combo of meds, stress, other thoughts dominating the brain (dark thoughts) it all messed with my memory really hard, and over the years it's gotten worse and worse- I had to quit my education very early on, start using sticky notes everywhere, I'm to the point now where I've even considered the possibility of early onset dimentia- it may be a bit extreme, but I did see a programme about a choir where someone had it (and he was younger than I was!)

I'm also the first person to hold my hand up and say I don't take proper care of myself- eat what I should, get enough exercise and sleep, etc etc. I just don't care
I have even had a few instances lately- where I have eaten 2 meals because I can't remember if I have eaten or not