If it is an acute pain, i.e only since couple of days then rest and take anti inflammatory drugs .
If it does not get fine visit a Physician to examine it and accordingly will refer you to an orthoapedician or a neurologist.
If you had a fall, injury or twisted your hip then i suggest you have to visit an orthopaedician immidiately.
Take care!
You can ask your Doctor to do a EMG test which is a nerve test? That would help explain why it is that you are having pain and numbness. Good luck
I would start with a chiropractor myself. It could just be a pinched nerve. If that doesn't help,then have your g.p refer you to a nerve specialist.
I had the same thing happen to me about 16 years ago. I ended up on crutches.At first they thought that it was some type of hernia...this was two days before my wedding...
I went to a chiropractor and it turned out that my hip was out of place and pinching something.
Hope that helps.