Sounds like circumvallate papilla, which everyone has.
Yeah, that's exactly what it was. I feel like an idiot. But, at least J and I had fun making my doctor uncomfortable. She asked if we were new partners, and I told her no, we'd been together for a while. But, we had an open relationship and I did have a new partner. She responded "Oh, okay. OH." and looked kind of embarrassed lol. She then made some kind of comment about it being normal to be concerned about transmitting stuff when you are "intimate with your mouth." We still have no idea whether she was referring to making out, blow jobs, or both.