I have been diagnosed with osteoarthritis in my right hip. This showed up on an x-ray, after some months with groin pain and throbbing feet. I would ask the doctor to send you for an x-ray of your hip. I have seen a physiotherapist and I am on the waiting list, for a group session for a 5 week, twice a week, for exercise and nutrition. In the meanwhile to build up muscle, I have been given three exercises to do three to four times a week. These are: Isometric Single Leg bridge, repeat 8-12 times, twice, sit to stand no hands, repeat 8 to 12 times twice and single legs balance standing with support, hold for 20 seconds, repeat 2 times.
Examples of how to do the exercise can be found on line.
Unfortunately I can't take ibuprofen, as I take blood pressure tablets. I don't find paracetamol much help with the pain.