I am 19 years old. I am very athletic. I am a person with diabetes and was diagnosed at the age of 6.5 years old. I am 5'9" and 165 pounds. My primary concern is that lately as in the last month, or so there has been a constant pain in my lower back and the kidney area. The pain is not sharp, but more like a feeling of dull pain and just heaviness. I went to ER a few days ago, and they did a urine test, blood test and CAT scan and everything came out fine. The doctor was very vague with me and disappeared quickly. He said that I have back pain, but recently I have not been doing anything to cause back pain. Also, the pain is deeper than the layer of muscles like I feel it inside. When I touch it, it does not hurt. Is this something to worry about? Should I do further tests?