I don't have as much pain as you seem to have, but I have the same problem in my right hip. It started about 2 years ago, when I would get up, and I would get a horrible cramp there that causes me to either have to sit down again, or walk like an old lady until I can stretch it out. It doesn't happen all the time, but randomly. Massaging it helps (it feels very tight). But yeah, it does get annoying.