LO is 21 months. We introduced the potty at 12 months just to get her used to sitting and not be scared. She's gone a few times (both pee and poop), but maybe by fluke or chance. The past few sick days at home I've been more concentrated on going diaper-less at home. Today has been terrible. She KNOWS when she has to go, tells me, but REFUSES to sit on the potty. When she has to go, she flips out, screams, cries, just wants me to hold her, etc. I know she can hold it, she did this on/off for 3 hours and when she FINALLY does go, it's standing and she swishes her hands back and forth down there, flinging pee or poop all directions! Ugh! I don't know why now that she knows, she is flipping out on the potty and refuses to sit down. iPad, books, songs, and treats don't work. Sitting on the potty is nothing new.

Any tips or advice?