I related all too well to this post. I think Bill said pretty much everything.

I will tell you something a friend of mine said once, "'Tough' is bull****. There's no such thing as 'tough' like there's no such thing as 'weak'. People are just that: People. There should be no measurement of strength because it doesn't exist. We're just human. And each one is different from another."

I don't know if that will help, but it's something I remember and recite to myself every time someone says I'm 'tough'. I don't know, it just helps me deal with it.