My shoulder has been a problem since radiation. It just aches. In the last week, I've begun having problems moving it. Last night, massaging it, I discovered a large lump in my armpit. "Tim," I said cautiously, "is this my imagination?" His hands moved around in the dark and stopped. "No," he replied, and he flipped the reading lamp on at the head of the bed. "Gees," he said, "You can see it."
I'm trying to think of a word big enough for my shock. Unaccountably, I come up with 'gobsmacked'.