I am sorry for not having any pictures. The hole was so small I am not sure you would have seen anything of value.
As an update: I used a large needle to probe into the hole to locate the object causing the bump-up. I did not find anything!! I probed 360 degrees around the inside of the hole and did not hit anything solid like a screw. I am wondering if the bump-up and the small hole we there all along and it took the huge amount of rain we had over the 4th to produce enough of a leak to be detected inside the shower area. So it will remain a mystery as to why we had that small hole in our roof.
Anyways, it is all patched-up now. I sanded the area with 220 grit paper and placed one very small patch of Eternabond over the hole with a larger patch of Eternabond.