Nick Weatherhogg has been diagnosed as suffering from severe depression. Many of you will be nodding wisely and thinking that you know how he feels: but there are two points he wants to make here. You ''don't'' know how he feels. This is ''his'' depression and only he knows what it feels like - if he's able to think or express how he's feeling. The other point is that there's a big difference between ''feeling'' depressed and ''being'' depressed - ''fepression'' and ''bepression'' as he terms them. He's right: I've been there. My feelings, my experience will have been different, but I do know that it was hellish. He describes the experience as ''a mental state in which your brain regularly and consistently lies to you.''