Concerned about Chinese Dwarf

[texas20]

Hi everyone! I'm new to the forum.

I am a bit concerned about my Chinese Dwarf. She's 1 year 9 months, so I've been trying to pay a little extra attention to her health.

Today, I noticed that Luna's tail looked a bit weird. It seemed like there was less fur on her rear, and that her tail may have had a bump (but I may have been overanalyzing). Her overall demeanor seems completely normal, and she didn't appear to be in pain when I touched it.

It doesn't look like wet tail, and she has been eating completely fine. I'm just concerned about her and wanted some of y'alls opinions. I am planning on calling the vet tomorrow.

Photos attached are of Luna's tail and of her cute face right now!