what is this?

Hello! Ever since my gecko’s tail has been getting bigger, I’ve noticed this indent on her tail thats quite big. Is this normal or should I take her to the vet?

So I fed my gecko this morning and the crickets were a little bigger than usual. After I fed her she did something weird. She turns her head around and touched her nose to her side. She did it in both sides several times. I don’t know if she was in pain. ??

I was recently given two females, of what I was told were African Fat tails- white out morphs. But they look like leopards to me, and i can’t find any pictures of patternless white morphs like the two I have.... Was wondering if any of you guys could confirm my suspicions or let me know if these...