what would it physically feel like to turn?

this may sound like a weird question, but i’ve been fascinated with mermaids ever since i was little, and i’ve always been so curious as to how the transformation would physically feel like

i personally imagine your legs to firstly feel extremely heavy, and you aren’t able to move them quickly, then your legs feel like they’re becoming one and you don’t feel them as separate legs, but more like one big leg (if that makes any sense ??? 😭) and possibly that they start to grow a bit more considering the tails are longer than their legs

i would love to hear any other opinions or thoughts! 🧜‍♀️🫧🧡