I've been having some pain on my lower back (left side). At first i thought I had Kidney stones so my Primary doctor had me do a CT scan test. The result of the test was negative, no signs of stones, but there was trace of blood on my urine. My doctor had me go to my Urology doctor and again there was signs of trace of blood on 2 visits. Last thursday he had me do the urine test again and found moderate blood, meaning stronger signs of blood, please note that i do not see the blood. I urinate find and does not hurt. But i still feel the un-comfort pain on my back. Just the other day i noticed i peed what seemed to be very small crystals. Almost like light red or light orange kinda. I mangaged to grab one of them and squashed it with my nail and it desolved to like sand. I've been drinking alot of cran berry and water, and latest a herb called chanta piedra which i boil for 10 min and put in fridge and drink like water during the day. Can you please tell me what i have.