NSV - Confused by SA

I was shopping over the weekend and had a Sales Assistant come over and ask if I was buying for myself or someone else, when I told her it was for me, she told me I was in the wrong section, that I was in the plus size section and my sizes would be on the other side of the store
I just stood there looking at her blankly for what felt like 5 minutes before I realised that I'm not plus sized anymore
It's a strange thing because I still see myself at 240lbs+ this new 166lb body is very new and my brain hasn't caught up yet
Side note: 21lbs to goal!