Oh good, it is not your urine. All things you describe is a normal part of fasting. Sleep is erratic. Food thoughts are also quite common.
I must say that food thoughts are what we are used to eating or what we know. I have never craved anything that I did not eat....I am a born vegetarian and never ever during my fasts I craved meat or eggs or salmon or chicken, it always was fruits, lemons, mangoes, oranges, etc. it is an interesting subject.
Anyway, keep up the good work.
Move about slowly, drink warm water, rest and keep warm.