So I had a thorough eye exam, including an OCT, and my eyes seems to be just fine. The additional watering or tearing seems to be less about dry eyes, he said, than about congestion of sorts. He was an optometrist, but here they're doctors. There is something going on with my eye, but there's no visible nerve damage and loss of vision. Not sure what to make of this, but at least I know that despite the weirdness, there are some things that are okay with my eyes.