I know everyone's pain is different, but my knee and hip pain have gotten so bad in the last few weeks I have difficulty with the stairs, standing and sitting. I've had intermittent hip and knee pain, but never all four joints at once. Frankly, it's been scary. I just turned 40 and wonder if this is age pain or fibro pain? I went months with very few fibro symptoms, but as soon as the weather turned cold I started having symptoms I've never had before. Anyone else experience this?