Really stressed out and felt like crying after going outside today

I think I was having some sensory overload when I got back from going outside today. My mind was really scattered and I wanted to sit in a dark room wrapped in a blanket for hours after. I felt anxiety and like people were out to get me. These girls were yelling stuff from their cars and then they got out and started yelling near where I live, it put me on edge. Then when I went to the pharmacy the people there were unhappy and one of them complained "What's going on? I just want to go home and eat." And Another person walked by making a snide comment as I was at check out. I only went to pick up one thing, my medication but there was all this negativity around me and I just wanted to get out immediately. It made me really depressed after. I'm actually looking into mail order for my prescription now because it's like this every time I go to the drugstore to pick up my medication. Last month I was a there a girl stood very close behind me and said "How sad" flatly as I got my medication. I don't need these soul crushing comments on my life. I'm just done with people right now. It's too tiring. I'm sorry for this vent, thanks for letting me get this out.