I've had pain in my thumb joint (in the middle of my thumb, not at the base) for a couple of months now, although it comes and goes, but has recently started hurting more of the time. It feels like it's bruised on the inside if that makes sense. It's starting to be hard to hold some things without it hurting. I squashed my thumbnail in a metal gate 3-4 months ago, but I can't see how that would affect the joint further down. I will go to the GP if it doesn't get better, but I just wondered if anyone had had anything similar without an obvious injury.