My DD is 12. She hasn't been feeling well with a sore throat and stomach ache for three days. I took her to the GP today who diagnosed tonsillitis. Whilst there we gave him a urine sample as requested. He said no infection but would send off anyway. When I got home I tested her urine using the strips we have at home as she is constantly going to the toilet so I assumed UTI too. Whilst it came up no infection it did however show glucose if I'm reading it right. Should I be concerned by this or not. Thanks in advance :)