I have been doing the 5:2 and 4:3 laster for about 3 weeks total now, doing really well with it, but have noticed when waking up in the morningafter my day of fasting, my muscles and bones feel a bit stiffer than usual until I get moving. Not in a bad way, as I still feel good and energetic, and not famished even, but just wondering what it could be or if anyone else feels that way. I am getting good rest so that's not it, just have to get moving a bit.
Michael
Michael