@matildaschmidt I too welcome you to Connect.
I have had two TKRs and both were different. I have heard that even when both knees are done at the same time by the same doctor, there can be differences post-surgery.
I know doctors are very reluctant to prescribe pain medications these days, have you had anything? I have read that ibuprofen is just about as effective as the various opioids. If your doctor will not prescribe pain medication can you at least get a prescription for something that will help you to sleep? I had a similar problem because I cannot take ibuprofen, just acetaminophen, and that is not a huge help at all. I did have a very small prescription for a pain med that lasted a couple of weeks and that did help.
I hope you are able to catch up on your sleep during the day, being sleepless is not good and I believe lack of sleep hinders healing too.
JK