my 2.6yo daughter potty trained 3 months ago very quickly and easily with no accidents. She relished going to the toilet (and initially getting a sticker) but has recently stopped saying she needs the toilet and refuses to go even if we put her on it (even the lure of stickers doesn't seem to be working). She has actually said "it's ok, I'll do it in my nappy" (I put her in a nappy for her afternoon nap and at night), and sure enough, her nappy is often very wet, whereas before it was only a little bit wet or occasionally dry (after the nap, anyway). What to do?!