Our eldest child has started reception in September. We trained our youngest easily on potty both poos and wees in the August. It was an easy train with v few accidents. The same week the eldest started school. the youngest regressed completely on poos and we have barely had a poo in loo or potty since. We have tried everything - including stickers, singing potty, trying prolonged sitting in front of beebies, getting the older to sit with her but no progress at all. She just sat for a wee, stood up and did a poo in pants. She seems to not even feel it any more. Sometimes she seems constipated but other times not so I don't think that is making the differences. She is completely wee trained and dry at night 6/7. Any experience of this?