Hmmmm.....interesting question. My son who is 16 has no recollection of me as big. He didn't recognize a picture of me taken when he was 8. I've been at goal or below for about 5 and a half years now. My husband remembers, as does my 24 yr old daughter. I was heavy or obsessed with dieting from the moment I knew I was pregnant with her until her sophmore year of college, so she really never lived at home with a normal weight mother.
But my extended family won't seem to forget! I still get clothing gifts from my father and step-mother in size large (down from extra-large) when now most smalls are too big. I really don't believe they are knowingly doing this since they usually look shocked when I try on the sweater or whatever and it's huge. They always exchange it for me. I see them regularly. Same thing happens with my siblings. OK, there may be some malice there

But I really think some of them still think of me as "the fat one" when I'm really quite small.
I don't remember what it felt like. When I'm having a "fat day" now, I have to take out my one pair of before pants to prove to myself that I'm really not back where I started. I hardly recognize pictures of myself. Maybe because like Meg, I really tried hard to NOT look at anything between my neck and my knees.
Mel