I wonder that too. But, most people don't really think of PTSD unless you've been in combat or something I think, so they prob. just think I'm 'different' or 'strange'.

I do wonder what my co-workers think when I startle so easily though. I have a very exaggerated startle response, so I am one of those people that actually jump and scream if approached unexpectedly.

They have never really said anything about it, and I have never asked them what they think. Some think it's funny and go out of their way to startle me just so they can laugh at me while I'm panicking. Most others are kind enough to announce themselves when they walk behind me or if they are going to come up close to me.

It's very humiliating actually and one of the things I hate most. If the people that laugh knew what it felt like to be startled, they wouldn't be laughing.