I think what happened at the weekend is catching up with me. GF is up with the family, I'm down here working and keeping things together this end of the world.
have you tried the forced smile technique? basically, the idea is that you force a smile, and your face being in that shape makes you feel happier, Im not sure it works like that, but I can tell you that if you do it in public, peoples reactions to your glaring, gurning, slightly unhinged pseudo-grin will make you happier.