Richard, speaking from experience (2020), take the pain meds they give you, don't worry about relying on them (they won't give you THAT many), and it will get you through the rough spots and you should never be more than a little sore and stiff...but if you think you are going to be a hero and refuse the meds, you'll be more than sore...and eventually need to use them! Wishing you all the best, depending upon the manner in which they did the replacement, you will be up and around and probably without a walker in 4-6 weeks...not ready to be laying bricks at that time, but walking tall and looking good!