This is the third time in 6 months that I have taken a fair blow but in my opinion not very hard from a knee while holding someone in side body that has caused me a lot of pain. I have taken much harder shots on my left in Muay Thai with no problem.
It leaves me with a dull tight feeling pain that if I get in just the right position just feels tight and does not hurt. I can stretch it with some pain and it is sensitive to touch just below my bottom rib but not on the rib itself.
Is it possible I have a bruised kidney (I am not passing blood) or a kidney stone that is aggravated by the blows?