Anyone else feel extreme anxiety in supermarkets for some reason?

I don't know why. For some reason, my anxiety in public has gone down dramatically, but supermarkets give me such bad anxiety for some reason, and I dont know why. I have to lie down or sit in the car or on a bench breathing deeply for ages. It sounds so dumb. I think it's because there's a lot of things going on in supermarkets, and your brain is getting pulled in a million directions, and also there's other people wanting to get past you to get their stuff. Small supermarkets or grocery stores are okay, but massive ones make me think I'm going to die.