hi all My DD is 19 months now . She was sweet and regular to sit on a potty and poop. But for the past 1 week she refuses she runs on sighting the pooty seat. I dont use force but talk to her a lot.Her it is winter i doubt becos of that or am i assuming. Did any one expereince this i am very much worried as to how ill train her. In 6 months time she is going to playschool her all schools doesnt train the kid. So please advise and getting her of nappy with cotton one help in training her?