It *was* a tumor.

I woke up that Saturday morning in late January with a strange shadow on the right side of my vision.

It was a grayish cast at the far right edge of the image in my right eye. Sort of like how the details fade out at the edge of an old photo.

Over that weekend, the gray advanced toward the center of my field of vision, a little at a time. By Monday things had transformed from a minor annoyance, like when…