my 3 yr old has not pooped in 5 days. when she does go she tries to hold it in. its always just a very small hard ball. i put her on miralax 3 wks ago it worked. she started getting constipated again but this time was worse cause she wont go at all. i ended up taking her to the ER and they said she has a ball of stool the size of a baseball in her belly which caused her to have urinary retention. she had a catheter done and had over 500cc s of pee come out. she has been on miralax now for 4 days and has had 3 enemas and still hasnt had a bowel movement. what should i do? she just cries when she has to go but cant cause its still to big and hard!!! please help!