Just after some advice. I have 3 daughters. The two eldest were potty trained at 2.5years no problems just got on the toilet one day and that was it. Im really struggling with my youngest. She is currently Almost 3 and we had a week of her going to the toilet with no accidents if she had nothing on her bottom half. the minute we tried to use knickers she just started wetting herself every single time she needed it. Now she wont even use the potty if shes naked on the bottom. I dont shout or anything when she has an accident I just discretely clean it up but im so lost. its like shes gone fully backwards again. Any tips for me? Thankyou.