DD has been dry by day for 2-3 months now (she's now 33 months old) but can't bring herself to poo in the potty or toilet. She doesn't have accidents - she knows when she needs to poo, and tells me, but when I put her on the potty/toilet she gets really upset and keeps crying and trying to stand up and telling me she's finished. Then I let her off the potty and 2 mins later she says she needs to go again.
This continues until, either:
a) the urge passes and she no longer needs to go, or
b) I put a nappy on her and she poos straight away in the nappy.
We have tried putting a nappy on her and then sitting her on the potty (with a nappy on) to try and get her used to the position, but she doesn't want to do even that.
I think she's just gotten so used to doing a poo in a nappy while standing up, that anything else feels unnatural.
I know this is a common problem, but her aversion seems to be extreme. Any advice, please?