Thanks for your question
Your pain might be due to Sciatica
or AVN. There are few answers which i wants to know from you? Your age? Have you any numbness
at hip or thigh? Does your pain increases on walking? Have any history of trauma at hip? In lie downing position to what degree does you are able to raise you right leg without pain?
Kindly follow up with answers so I can help you to get to a diagnosis.