Can you be depressed but just not know it?

Question

Can you be depressed but just not know it?

Answer 1

Yes. Sometimes it creeps up on you so slowly you don't realize it until it's really bad.  

Answer 2

that's how i was...

i knew something was wrong... but i couldn't figure out what it was.

Answer 3

most deff. i sure as h**l was.

Answer 4

Definitely. h**l, I've been dealing with depression in various stages pretty much constantly since I was a kid, and it still takes me a few months to realise I'm in a downward spiral.