I've had squeaking several times. They all correlate to both heavy exercise and dehydration. Here is a brief history:
Right hip resurfaced by Pritchett May 2015.
My first squeak was January 2016 after about 20 miles of nordic skate skiing on soft snow. I had sweated a lot and had drank roughly 1 liter, which is not enough. The squeaking occurred after I drove home, when I was going upstairs to take a shower; my wife heard it 2 rooms over.
Second squeak was a few weeks later again after significant nordic skiing. Very similar circumstance, but this time it squeaked getting up after stretching.
The third time happened in the first week of a two week backpacking trip in the John Muir wilderness. I'm from humid Seattle, so being above 10,000 ft in very arid climate certainly led to dehydration. Getting up the fourth day I could definitely tell that the joint was not properly lubricated. I stayed in camp that day and drank ~10 liters of water. After getting up 8 times that night (to pee), the joint seemed okay the next day (well lubricated).
I continued to hydrate as best I could on that trip, but after day 9 I had another squeaking incident. That day we resupplied with food and then started hiking again. The resupply added about 20 pounds to my pack, and after about 2000 ft of climbing the hip started getting grindy again. I have evidence that there is definitely an element on exertion to the squeaking formula. This time a night's rest along with hydration seemed to work.
I don't like it when my joint squeaks. My concern is that I will damage the bearing surfaces, which will then require even more lubrication to keep it moving smoothly. Does anyone have any experience that suggests squeaking becomes more likely with repetition?