Christmas Eve, we went for a walk along the beach near our house. Afterward, I realized I pushed it too hard and a bit too far. When I got home, I took a nice warm shower. To avoid breaking the 90-degree rule on my new right BHR, I kicked my leg out behind me like a lunge (bearing all the weight on my left) to pick up my towel. When I stood up, I was greeted by that rim-of-champagne-flute squeak that so many of you have written about.
The rest of the evening, with every step, I could feel a less pronounced version of that squeak... sort of like sliding a finger on a steamed up window. It didn't hurt... but it felt very weird. And despite my rational brain knowing there was likely nothing to worry about, the less rational side won out, and really ruined my evening.
When I woke up Christmas Day... that finger-on-window sensation lasted for about 10 steps, and then it went away.
I know there is wide consensus that squeaking is often associated with an increase in activity level and intensity. After my experience, I would also postulate that the definition of "increased activity" is on a sliding scale. Three weeks ago, walking 3/4's of a mile, would not have been an increase in activity for me. But two weeks post surgery, it was.
I think it would be very interesting to look at people with hip-resufacing to see the rate at which synovial fluid production changes, relative to activity level. And the percentage in volume change over a given duration relative to increase or decrease in activity.