E....I was in the exact same spot as you..word for word I could have wrote your story.My daughter Gracelyn turned 3 in May until mid august she had no desire to train,then completely out of the blue she went and sat on her potty and TT'd well that was a big,big deal and we let her know..But when it came to pooping,she did just like your daughter..went and hid and did it,that telling us she knew she was not doing right. Well I tried everything to change that but nothing worked until I found something she really wanted....it was a candy ring pop,I bought a tub of them and told her they would be only for when she went poopy potty...well there were several fights over them,because she would Tt and want one...but I stuck to my word and never gave in..sure enough , one day on her own went into the bathroom and came out saying she had went poopy...she was really excited...and of course we got out the ring pops and she got to pick out the color and from then on,no problem ..now she only did the ring pop about 2 weeks and then forgot about them and now generally does'nt ask for any treats for using the potty. I still put a pull up on her for outings,mostly for my benefit. When I do I still take her to potty,if its possible. Hope this helps,you just have to find something that really makes her want to get the reward.Obviously she knows the feeling that needing a bowel movement feels like because she goes to hide to do it...Now she just needs a little more prompting to do it in the right place.G.