My son 29 had his 6 monthly medical review today. The nurse said there was a tiny amount of blood and protein in his water sample so he's having his bloods tested next week (fasting). He told me he's never noticed any blood when having a wee and there's no pain. I did a google and most of it is kidney problems but they all say there's pain involved. Now I'm a bit worried. Opinions please. tia.