I have this same symptoms on and off. The first time it started was when I was attacked at age 15. I was told it was social anxiety but now I wonder if it's actually PTSD I've been dealing with all these years. I'm in my 40's now and it gets bad for a few weeks or months....then gets better for awhile...then bad again, etc.

Leaving the isle if someone goes down it is very familiar. I do better if I bring someone to the store with me. Sometimes I simply cannot go in alone at all. Sometimes I can't go with others either but that is more rare.

(((Hugs))). I'm so sorry you deal with this too. It's very difficult to deal with. Have you talked to a doctor about it?