Ok so I've been diagnosed about a year and I'm learning lots fast. But I'm stuck with this one and need to pick your brains. How long does a flare up last? Or is it something else? For two days now I've had a deep seated pain in both hips. Deep in side the joint. It's worse when at rest sat or laid down and becomes bearable when up and moving. If it was as bad as when at rest I don't think I'd be able to walk. Am I flareing? Or do you think it's something else?