Pain back of lower pelvis and pain in hip, for nearly two weeks

Like it’s been like this. Like nearly two weeks I went to bed and woke up with a pain in my hip and back of pelvis. It only really hurts when I walk for too long. Especially when I press the afflicted area it really hurts. ibuprofen helps a bit. And rest definitely makes it stop hurting. I just need others opinions so I can stop feeling paranoid.