Ds who is 9 has been suffering from flu since Friday. Very poorly with high temp, cough, sore throat muscle aches and pains. Seems to be a little better today but get weak. I helped him have a wee into a bottle this morning and was very dark brown/ red colour not unlike cocacola colour. Very alarmed so I tried to get him to drink lots and look at next wee. Was less dark but still pink tinge. Called GP surgery and nurse confirmed blood and protein in urine. She spoke to dr and was given a antibiotic as a precaution. Wee less dark but still pink later today. Should I be pushing for further investigations at this point. Anyone else had experience of wee this colour?