What to say to children to explain...

[Suzi]

And actually I think that they guess far worse than what's actually happening...

[Grey haze]

This is a topic I am struggling with at the moment. From previous bouts of depression I have always managed to hide any obvious signs. This time round with my kids being 14 & 17 I haven't. My wife actually got quite angry as I have broken down a few times in front of the kids. It actually made my son quite ill with a bad stomach. It made me feel a whole lot worse. I would be grateful for any advice that would help explain to my 14 year old son why his dad is crying quite often.