Thanks for the replies ladies.

All 4 of my munchkins came down with gastro at the same time, with the youngest having to go into hospital for a couple of days. We've gotten over that, and now they are all sick with a shocking cold. I'm just feeling really tired at the moment, and everything together has made me feel a little depressed.

DH has been absolutely fantastic, and I don't know where I would be without my mum.