<s>[INST] I went to the ER for pain in the left side of my abdomen . They ran all kinds of test, the pain is between my rib cage and hip and is kind of tender to the touch. I don t feel the pain until I take a deep breath. The ER said my blood work and CT scan came out clean. i had a little bit of blood in my urine , not enough for it to be a UTI and I had just finished my menstrual cycle 3 days prior so that explained the blood in the urine. It went away and now it s back. it s been 4 days. I don t know what to do? Could it be a back muscle thing? my back doesn t hurt. [/INST] Hi, It may be due to the spasm in the back muscles that is causing the pain or may be due to concretions in the kidney that is causing the blood If it is tender it may be due to muscle have combination of 1. Pain killers such as Nuberol Forte twice a day for 05 days 2. Muscle relaxants such as Cap. Muscuril 04 mg twice a day for 05 days. There is nothing to worry about you will be fine in a day or two I hope I am sucessful in solving your query If you have more you can ask me. Take care Regards, Dr. Azhar Sattar </s>