Well done, you sound like you are doing well.
My pain did gradually improve, it's important to listen to it and adjust how much standing and walking you do.
I am 8 months post op now. It is well worth the effort, but not does take time.
Here is something I wrote at 12 days post op, as I kept a journal;
" I still have my silly “making things harder for myself” mentality. As I look at the exercise booklet, it is so easy to feel that I MUST do that particular exercise (straight leg raise!) and I MUST do it now, and I MUST do it excellently. But what I realise I MUST do is keep moving, keep active and keep resting. My main focus is to include some movements which I enjoy (ie yoga) and try and do a little bit more walking around the house each day. Walking is not hard with the crutches, but it is tiring. Exercises could become a trial if I did not enjoy them, so I am starting to put some music and and to devise little sequences. Almost dancing! Almost. I am also making range of motion a priority. I regularly make sure my day is dotted with a mixture of bending my knee and straightening my knee as far as I reasonably comfortably can do it. Sometimes the bending involves a low level of what I will term ache-burn sensation. I won’t call it pain, because as long as the pain is being managed, it is more of a just hint of pain. Think of the following:
“A delightful blend of bending the knee, with the gentle addition of stimulating rich ache at the centre”
If it were a chocolate, this is how it would be described!
It is best to choose not to call pain pain if possible. However, while diverting the mind away from suffering, we all have our limits, and when it feels too much, it probably is. "
Are you in UK Neil?
People vary a lot, bear this in mind too.
I started gradually tapering off pain medication at around two weeks. At five weeks post op, regarding pain relief, I listened to my knee and while it did swell up from time to time and get a bit warm I did not push it to the point where it needed to yell at me. I sometimes took a Paracetamol in the morning, as it was uncomfortable first thing and I did my exercises in the morning, as I liked them to be pain free.
You may like to go to my profile by clicking on the image next to my name. I kept a journal of my own knee replacement journey, and I have been told by several people they found it helpful to read, or skim through. It was written to convey the need for patience, something our culture in the western world is not really geared up to! It has a lot of useful suggestions and information.
It's a good idea to jot down how things are, as it helps you to notice improvements as they happen. Keep positive, as best you can! Good healing to you!