I'm cutting out caffeine this week, just out of interest as to whether it will make me feel any better..
I take tablets on and off to reduce my heart rate as it goes a bit crazy sometimes and makes me feel a bit shitty, so it will be interesting to see if I feel any better for it
Also drink loads of tea just before I go to bed, which although I never feel like it keeps me awake, it's supposed to disrupt your sleep, so I might feel more awake. .. or not!