I had similar symptoms but also had increased knocking and clicking (every step), along with lots of swelling in my butt cheek, and I could feel the fluid gathering in my foot, it felt like I had a wet sock on but I was barefoot. Also had kind of a dull "toothache" type pain that would throb and keep me up at night too. I noticed that I wasn't able to maintain muscle strength, it didn't matter how much or how little working out, stretching and exercising I did, it was a losing battle. And I don't know if it was from lack of sleep or constantly worrying about it but I started feeling tired and fatigued all the time, just never felt "Good". You didn't mention any clicking or swelling and those were the most noticeable things for me. If you're not having any swelling or increased clicking and knocking hopefully it's just a muscle (or back) related issue and you can work it out and stretch it back into shape. I hope it's nothing major and just a setback ! Your doctor should be able to give you an idea after he see's the x-rays, mri maybe and your metal levels etc. Good Luck. Oh I don't know if you've read any of my other posts but I had a bhr that was installed with a very steep cup angle (65 degrees) had edge loading and alignment issues and was revised almost 5 years to the day after it was put in. Also want to say I hope you don't need surgery but, if you do don't buy into the thoughts that your life is over with a thr and you're going to dislocate tying your shoe etc blah blah blah. I've had my revision for 14 months now and it's bitchen. Work, walk, jog, run, carry crap, bicycle, surf, swim, ride dirtbikes, go dancing whatever, it feels strong and solid as it ever did.
Hopefully you just have some muscle issues and can be worked out with pt etc. Best of luck to you