've had DC for roughly 4 years. I don't have any "curling" symptoms, just a lump with a little stiffness. In the same hand, the lower joint in my thumb has been aching a lot for the past several months. At first I thought I had jammed it, but the pain has persisted for too long. It feels like it might be arthritic. I'm wondering if it is associated with my DC. Has anyone else experienced this? Or, can does anyone have information on the possible relationship to DC?