Okay, what is THIS?

I've been sticking to my new exercise regimen and trying to eat as well as possible each day. I have been drinking more water, sleeping better and making sure to keep most of my exercises to non-impact on my bad leg, which is a nice break if you are doing a squat jump on one leg then only have to standup and stretch on the bad. All that said I'm experiencing more pain than ever. Grrr.
Okay, please tell me if this is "normal" for someone with knee OA. I occasionally get tibia bone pain at the top of my tibia (inner side of the knee). It aches and hurts but usually I can take the edge off with a naproxen pill. I get general achy-ness on the OA side of my knee that sometimes makes my IT band ache, but again, nothing a pill can't take the edge off. This new pain, just to the right of my patella (NOT the OA side), feels like someone is trying to rip something out of my knee. It's clearly a soft tissue issue but holy heck it hurts so bad I literally cannot concentrate on my work when it hits. Yesterday I sat, clutching my knee for a solid 10 minutes before it eased up, and then hurt like proper hell for the rest of the morning, despite having taken a pill as soon as it hit. It is so bad I am afraid to move my leg an inch for fear of making it worse. If I had to run out of the building I'm not sure I could. Is that normal? If so I think I've reached a whole new level of sympathy for anyone with severe knee OA.
So did I run yesterday? Yup. Believe it or not, it doesn't matter if my knee hurts like hell all morning. When it comes quitting hour I can still run without pain. Weird. For the past year a bad morning like yesterday would have had me hanging up my shoes a few days but now I know my pain can come and go at will, without rhyme or reason, so if it doesn't hurt at that given moment I can go for a run. To me, this makes no sense but it appears to be how my knee works now. My run was nice and easy, so it was a bit slower than lately, but still I was proud I got out there. Knee OA is teaching me to live in the moment more than ever.