I had a friend as a kid who would get such bad nerves that she couldn't do the function in one or two public bathrooms, only at home-the doctors finally told the parents it could be her nerves, which wreak havoc on our "functions".
Her parents used to give her applesauce and then later on corn and it worked like magic!
Mine sometimes does half a dozen diapers in one changing-but is both #1 and 2 before we're on our way...
A person is a person, no matter how small. -Dr. Suess
Perserverance and spirit have done wonders in all ages.