I have a similar experience every time we go somewhere crowded like the mall, Galveston beaches in the summer, the zoo, even crowded stores (going grocery shopping Sunday afternoon when tons of people go), conventions, shows (went to a cat show with my H & our daughter since she loves cats), it was super crowded, Halloween trunk or treats...Just anything like that.

I cannot filter out the other voices and sometimes even think the people are talking about me. The rest of the noise I cannot filter out.

I have been this way since I was a kid. The worst was lunch at the school cafeteria, especially in high school. A lot of the time, I sat outside at the tables in very hot weather, cold weather, windy weather, just about everything but rain. I didn't help 100% as there were still students hanging around outside during lunch. I was really paranoid about being talked about then since most of those kids knew me. My high school only had 2 lunch periods: one for 9th & 10th, one for 11the & t2th. Lots of people in the grade below me knew me because my sister was in that grade and in the grade above me I'd have electives like art, PE (not really a choice, it was marching band or 2 years of PE in my school to graduate), etc., and some of them rode the bus with me. Lunch totally sucked since I had sort of friendly people I knew in high school but not real friends. I never knew who to eat with.