I was going to also suggest going to the GI specialist. Sometimes the anus gets stretched out making it really hard to go. It may not be a behavior at all, or she may be in pain when she goes, even if it is soft. My youngest has issues that they are trying to work out. I strongly disagree with just stopping the miralax and going to "natural" foods. Miralax isn't a laxative, but more of a stool softener. X-Lax is a laxative, and can be given to young children (talk to your dr for dosing). It will actually assist the muscles with pushing out the stool instead of just softening it up. If there is a muscle issue (which is my guess) then the natural foods won't help either.
at 6:31 PM on Nov. 16, 2010