my 3 yr old daughter has been training 100% with number one on the potty and no more diapers, just underwear for about 2 weeks now. She very rarely has had accidents and is great throught the night...

however, number two is a whole other story! She just can not do it. Has not done it not once. I called the pediatrician and told him that i think she is now constipating herself and he told me it may be dairy and to cut back and add juice. Well i did, but nothing. I really think she is just holding it in because she doesnt want to do it. She goes every few days and it is a little here, a ltitle there and i end up going through 3 pairs of underwear each time. i just dont get it and i feel it is so hard not to get mad and yell at her but i am clueless at this point.

please help :(