Normally I don't bother keeping track of how much exercise I get.  I'm pretty good at knowing how my body works and  making sure I stay as fit and healthy, but now is not 'normally' and I'm trying to build up my strength and I've been looking for some kind of device or app to help, without having to spend loads of money,...

I've been out of hospital for 4 weeks now, and the have been a tough 4 weeks. I'm still struggling to focus, I'm going out for short walks and returning feeling shattered then finding it hard to sleep and its even a bit of a mish to get in and out of the shower. so while all this frustrating stuff is going on...