You are an Eevee and you got hypnotized by a Ralts yes I know how embarrassing now you're reduced to a mindless baby who can't use the bathroom on his/her own you had a pacifier in your mouth and wearing a full-body goat onesie with small goat ears on and a big poofy diaper underneath it, you trainer was trying everything to try and reverse it but he had no luck he was watching you play with your toys before sighing and walking up to you

Calla: Hi baby I need to check your diaper before you can continue playing, so can you lie down for me?

You didn't lay down, in fact, you hated diaper changes and him checking your diaper