The thumb on my right have had gone purple and swelled a little. It looks like I caught it in something but I didn't. It's a bit sore and feels a bit weird. It came on this morning and it's still purple now. It seemed to pinch a bit before the bruising appeared.
I had a similar thing happen with the palm of my hand (left) and the 'heel' of one hand (' can't remember which one) when I felt a sort of pinch and then it just appeared.
if I was a horse they'd shoot me!