Strike a light! There I was feeling sleepy and blah -- and suddenly this evening, bing! it went away. It's past 10pm and I am wide awake. I suddenly have energy too. I'm bouncy. Earlier, I could barely drag myself to the kitchen to do the washing-up.

Will I feel this way in the morning? What's going on? It's so weird, so sudden and back-and-forth. Well I guess I shouldn't complain about feeling lots better at the moment!