Thanks everyone. I got about 3 hours sleep last night and I'm really feeling tired today. Had a lovely relaxing walk at lunch time to get some fresh air, and my amazingly lovely colleagues brought in cheese scones and cornflake cakes because they're concerned I've lost too much weight!

I recently joined a sports team and I've got two hours of training tonight... Really not feeling up to it but I know I need to get myself there, get some exercise and hopefully a good night's sleep.