I had to have an x-ray yesterday on my left knee. Went to see the doctor a few weeks back, as my knee was really painful. Felt like a deep rheumatic pain. Typical for the last week it has been fine and I felt a bit of a fraud yesterday when I had my x-ray. Hubbie thinks the cold weather made it worse a few weeks back. Sometimes it is difficult to ascertain whether it's fibro or some other related problem. Anyone else had this. I must admit, my knee does pop and crack; as my feet and ankles. Bit like rice crispies lol.