I was messing around with friends and in the process got kicked in the lower right, section of my back. It s a little pain (not severe, just uncomfortable) near what I think is kidney area. Not certain, it did hurt bad when bending over,but not too bad now. Still hurts in general or when I sit against a chair. I ve tried medication but it doesnt look visibly swollen. But tender to touch.To help: I have no fever, no problem with urination (no blood) does not hurt to cough. Just uncomfortable.Could this just be a sore muscle from the sudden kick ? Because of lacking symptoms, I have no reason to believe a kiddney problem