I’ve not been diagnosed, but I experience this all the time. I’ve made a habit of saying past me is so smart, if I remembered. I’ve written notes that I have forgotten about, and found afterwards and thought, wow if I had remembered this note, it would have been very helpful. Also examples like your said, “where’s [blank]?” Search for it find it after way too long* " oh wow that was an extremely logical place to have put it, if only I remembered. GJ past me"