Anyone’s baby wanting to go bare bottom?

My LO has been complaining about her diaper by pulling on her diaper and saying “owie, Pee, pee”

She doesnt have a diaper rash or any irritation that I can see, diaper fits well, and we even went so far as to take her to the pediatrician and get a UA done and all checks out.

Today i took off her diaper and let her run around like that and she was a lot happier.

My oldest did this when we were potty training and she was a few months over 2 years old. My LO isnt even 18 months yet but i dont know what else it could be.

Anyone else going through something similar?