@dickiedo Like @debbraw, I too have had two TKRs but not had that specific problem. For me 2 months was a huge milestone on my last TKR in October 2017, I was in some extreme pain often before that, pain that even brought tears to my eyes, and that scared me. My orthopedic doctor was on top of it though and seeing me every two weeks until the pain finally subsided, almost overnight! We are all different and all heal at different rates so I hope you will have the same thing happen to you, that suddenly the pain will be greatly diminished.
I was extremely determined that it would be better because my daughter’s wedding was quickly approaching. I don’t know if determination can help, but it can’t hurt!

By the way, have you tried putting a pillow between your legs when sleeping on your side? It really helps. I did it after my TKR and I’m doing it again while my fractured femur heals. The orthopedic doctor suggested it.
JK

Well WOW @dickiedo - for 3 months your ROM is great. And it sounds like you are doing everything you can do. Swimming is fabulous exercise. So so sorry that it is affecting your driving. None of us wants to have problems with that. Have you tried any of the alternative remedies - like for example, myofascial release, CBD Oil, etc? You know I'm not a doctor... and I can't recommend any of it, but I've read some good reports. I'm going to tag a few people who might be able to share their experience or give you some encouragement. @mrhappy, @doodles418, @jenniferhunter @babette - Meantime, your TKR was right knee - when you are driving and have pain applying brakes, is it the extension that bothers you? And when you are sleeping on your left side, how does that trouble your right knee?