I'm not an expert, but both my daughters have hypotonia. There can be bowel problems. My oldest is starting to have accidents. In researching this I've read that with low muscle tone that from repeated stretching of the rectal muscles, the child may not have the sensation of needing to go until too late. In your child's case, they may have the sensation, but the feces may not be moving through quickly enough. I would recommend that you talk to your doctor or with the specialists who work with your daughter. They are probably very familiar with this. Good luck to you!