After Strep Throat,Blood in Urine

Patient: Hi,I am 20 years old male,suffering from strep throat for the past 3 or 4 days but never took any medications until yesterday when i noticed the change in my urine to red colour and decreased urine output.I started using anti biotics yesterday even though my throat has been feeling a little better but still taking it because of the urinary problems.I am suspecting the infection is affecting the kidney.I did some research online about this but the blood colour and less output of urine is making me nervous.Pls suggest a solution.

Symptoms: Urine blood colour,decreased urine output