Shes probably testing you Louise, baring in mind she now is in nursery, and they all test boundaries when big things change the routine, she is at nursery with other children who may have different toilet needs and has different people telling her what she can and cant do. Thats normally why you see the changes in behaviour and toileting is something she can control - if you tell her to get dressed, she has to (eventually), whereas toileting is up to her to control and shes probably looking for your reaction to it all and seeing if she can get away with it / what you'll do.
Personally I would priase Felix for using it and staying so dry, maybe give her a sticker chart for everytime she goes to the toilet and praise it big time. Have a chat with her about staying dry and how it makes you sore if you wet yourself and all stinky (all her friends dont want to play if shes stinky!!). I have resorted to the, you will go back in baby nappies conversation, and only dogs wet themselves (Not technically true but for a little one they dont know!!).
Make her take her clothes off, wipe herself clean, put clean ones on, put the wet ones in the wash, wipe the floor, etc... Make it as boring as possible and she'll soon get bored of doing it.
Just be consistant in how you deal with it, continue to priase the good, which alot of parents often forget and that leads to worse behaviour.
(Dont rule out she may have a UTi though??)
Bliss buggy push - 29th June. 9.30am. Uncle toms cabin to ocean beach and back.
More info:- email@example.com
£40 ocean beach vouchers for highest fundraiser.