Depression is not an illness.

There is a difference between
being depressed (as in every day use, describing the feeling on monday mornings) and
clinical depression.
Much like there's a difference in being retarded and just behaving like one.
You have been told to be wrong in this matter; clinical depression is an illness because it messes your brain.
If you get ill and, say, you get a diarrhoea, how would you like if people came to you and just told you to shut the **** up and eat your food? Because it's the same frakking thing; a part of your body ceases to function normally.
Clinical depression is a disturbance in brains just like diarrhoea is disturbance of digestation organs. Regardless of what causes it, it's very very real once you have it.
If you don't get it after this second time these things are explained to you, you either are really as daft as you seem to be in this matter, or alternatively you've done a lot of practice. In either case, I'm done proving your opinion utterly false, because it doesn't seem to have any effect to your opinion. If you want to think like you do, you sure are entitled to have an opinion, but denying obvious is just plain stupid.

"Tell me I'm wrong."
It's difficult to tell something to someone who obviously doesn't want to hear it. You have already been told the reasons why clinical depression is to be considered as an illness; yet you still ask us to tell you you're wrong... Creationists do that all the time, they claim to have reasons why evolution can not work, and every time their "reasons" are shot down they just repeat them as if they were some incredible incantation making things like they want them to be.

That said, I'm inclined to agree to aldo's analysis of you trying to get attention, and you know what, you've gotten it, but not for yourself but because I don't want to leave your claims unfalsified. If you're not trying to get attention, get us some actual arguments behind your claims of clinical depression not being an illness, not just some ridiculous anecdotes of someone losing their girlfriend and needing a slap.
