My report says there is blood in urine, but my doctor says I am fine. What should I do?

Hi doctor,

Recently, I had undergone chest X-ray, ECG, creatinine, fasting glucose, postprandial blood sugar, urea, uric acid, lipid profile, liver function test, thyroid stimulating hormone, TSH, urine complete analysis, complete blood count with ESR and ultrasound of abdomen and pelvis. All the reports came back normal except my urine report. My chemical examination of urine says there is blood in the urine and the microscopic examination says pus cells and RBCs are present. I contacted my doctor immediately and he suggested to go for urine culture and sensitivity. The report came after three days and it looks normal as well. It says, no growth noticed at the end of 48 hours of incubation and microscopic examination says occasional pus cells and no microorganisms were seen. The doctor said not to worry and that everything is alright. He suggested taking more water. He also mentioned that the ultrasound report is also normal. I searched on the internet about RBCs in the blood and saw some very strange articles which scared me a lot.

I request you to kindly help me out and suggest what I should do.