Feelings taking me by suprise - again

Imagine walking down a supermarket isle, and then for no reason what-so-ever, you start to feel very scared. Happened this evening in ASDA. Took me by surprise, I find supermarkets difficult, but it's normally OK when they are quiet. Wouldn't normally publicise something like this, but I think it happens to a lot of people, so I've decided to share it. So, if it does happen to you sometimes, you know you're not the only ones!