My experience sounds similar & I attached a pic of my bruised leg. Two days after TKR the anesthetic wore off and the level of pain was worse than anything I ever experienced prior, including ruptured kidneys and various broken bones. The only relief from leg pain came from copious amounts of OXY but rather than get hooked on pain pills (like a friend of mine), I toughed out the pain which means I didn't exercise or sleep very much and lost 15 pounds from nausea. Gradually the pain level decreased but the nerves never stopped "firing". It felt like electrical wires were attached to my knee and the shocks would run down the shin bone to the ankle. Shooting nerve pain would go off day and night causing verbal outbursts. At 6 weeks I had an MUA to regain ROM and lots of PT followed. The tech would bend the knee until I "tapped out", indicating I could stand no more pain. I continued those exercises for 2 months because I was told scar tissue was unlikely to form after 12 weeks. That was a mistake (IMO). I should never have ended the rigorous exercise regimen, no matter how painful it was. Scar tissue set it and I needed a third procedure (arthroscopic surgery) to extract the scar tissue but despite the exercise regimen, the scar tissue came back in 6 weeks impeding movement. Not sure what my next step is other than accepting I can no longer do many of the hobbies/activities I once enjoyed. Most of my frustration and rage has dissipated and my entire focus is on how to regain some level of normalcy w/o pain and drugs. Over time I developed an exercise routine that's working but my ROM remains limited to 90 degrees. I canceled the planned TKR on my left knee. IMO, living with arthritis is easier than this. Trying Hyaluronic acid on the left knee. If that doesn't work, I'll try PRP and then stem cell.