I agree with not making a big fuss sometimes letting an issue go solves it faster , as i asked is she going to pre school?.
hi thanks to you both and yes shes been using toilet now for bout 1yr so very unusul for her to be doing it now its like she cant hold it back r dont no wen shes needing a wee till its too late :-(.
I also think it will pass, especially if you don't make a big deal of it and cement her into a position where she feels ashamed or bad about herself in relation to it. In your shoes, I'd just put her into pullups for a while. If she asks why, just say something that indicates you feel this is a temporary thing and she'll get back to underpants when she is ready.
Was she potty trained early as very often they can regress, for a while I think you will find this will pass, is she in daycare , if she is make sure the teacher is reminding her to use the toilet .