DD2 is 12 weeks old (6 weeks corrected). She is exclusively breastfed and usually does s poo once a day. She hasn't done a poo now for 4 days. I mentioned it to the health visitor at the weight clinic today and she said if she still hasn't done a poo by tomorrow to take her to the doctor and he can give something to help as she's so uncomfortable and it's stopping her from sleeping. What would the doctor do? Would he prescribe a glycerin suppository? Or something else? TIA