Thanks Steve
Yes, drinking more water is also what I decided to do, and that's all. If it's detox, it's natural and will eventually go away. Urea raises when eating meat, so his advice doesn't make any sense whatsoever and I won't follow it.
I didn't tell him that I made a dietary change. I knew he would be biased if I told him. But he knows me and always tells me to eat meat, no matter what my problem is

I don't believe in doctors anymore anyway, so don't worry
I'm thinking about stopping the trial though, but for completely different reasons. I had a very interesting conversation today and realized that my
reasons for doing it don't feel very good. But I haven't made up my mind yet.