The other thing that causes me to believe it is arthritis in my hips is I have experiencd this same exact type of pain since I was about 20, back then, (I'm 54 now) it only happened when I would get too cold at night, or sleep in a sleeping bag on the hard ground.
I was also dx with arthritis in my left shoulder and my doctor said she could tell I had it in my knees too, their really creaky. It sounds like gravel is in my knees, and hurts when I go up and down the stairs
I do not think my hips would only hurt when I walk too far, anything over 2 blocks now and a year and a half ago I was walking 2 -4 miles several times a week, it hurts worse when it's humid, and many times wakes me up at night.
My fibro pain is more like having the flu, plus alot of other stuff thrown in like fatigue, insomnia, and sensitivity to noise, odors, and lets not forget the tinnitis.
I have an appointment with a Rheumy, though it is not till march.
Well, thanks for listening, and the feedback. I hope you all are doing as well as possible.
Blessings
Debbie