I Have Been Having A Hip And Leg Ache Especially

I have been having a hip and leg ache especially at night and when I'm sleeping on that side. My right side seems to be more affected than the left. I can put a small soft pillow under my hip and that will relieve the pain somewhat at least to sleep. It comes and goes also as I might not have the pain for weeks on end and If I seem to do more exercise during the day, that night it is rather painful. I have taken ibuprofen and that seems to relieve the issue.