You know, I have seen babies who were supposed to "need" a harness for dislocated hips and it turned out that with CST, there was no need for such intervention. As for stooling, I will say this every time the issue comes up until the evidence is clear enough to be indisputable--it matters very much that a baby stools so infrequently. The guideline that I have come to believe makes sense is that every human being should have one bm per meal. That means about 10 per 24 hours for infants and 2-3 per day for adults. I don't think there is a valid physiological reason for any variation. From what I understand, variations are caused by poor gut health, which may be related to allergies, dybiosis, Crohn's disease, celiac disease, IBS, structural problems, etc. I would absolutely look for a solution to this problem. If it is due to the harness, then the baby should have daily massage and would benefit from regular CST as well.
Jennifer Tow, IBCLC, CT, USA