Night fevers are indications of urinary infections, cough, sore throat, cold and viral/bacterial infections. The blood you see in the urine could be something due to some urinary infections or kidney stones. This can be also seen due to benign prostate hyper plasia, tumoours in bladder or prostate. It is better to see a urologist at the earliest to get a confirmed diagnosis and a thorough checkup. Necessary investigative measures include ultrasound, urine culture, microscopy and blood count. Follow the instructions of your doctor carefully. Get well soon.