Someone had posted about neck and arm pain. It had me thinking about my own issues. I do have a partial fusion in my neck, as well as arthritis in my hips and knees ( only 3 areas I have had testing on). Does APS cause arthritis, or even the bloodthinnera I am on? I walk with a cane most times, and a walker some of the time when it's bad. But my hips are extremely painful and I was just wondering if it may be connected. I was a very fit person before my illness destroyed my body. I worked out all the time, and now I am frail as ever.