I Thought I Had A Kidney Stone. Went To The

I thought I had a kidney stone. Went to the ER had a cat scan didnt see one. Have a small amount of blood in my urine. I've went to urgent care with this several weeks ago had some blood gave me antibiotics. Felt better then started having to pee with some pain. Went to primary care Dr. Same thing more antibiotics felt better. Then last night started having to pee alot with pain?