Really not painful at all to me, it feels more like a deep muscle bruise.
I've been dealing w/knee problem since the late 70's.
Each knee has had 6-9 surgeries on them.

Name something in the joint area, I have torn it or wore it out.
Hardly taking any pain meds but sure could use a could more hours sleep that I didn't get while in the horspital. Great hospital, but it's like, HEY, it wasn't a life threatening surgery & I didn't need people waking my "I want to *'ing sleep" recouping body up every 2 damn hours.