I'm looking for a little advice really... Lyla used to suffer from severe constipation, it started at about 2 weeks old and only stopped at about 15-16 weeks because of a change in milk. We tried all the different brands, all the different varieties etc and found that soya milk was the only one she could tolerate. The constipation got better, she wasn't in pain, the vomitting calmed down. All was good. We have now struck another problem, in the past week we have started slowing introducing her to food so that she is ready for full on weaning at 6 months. She had some cauliflower cheese last night, went down well and she enjoyed it. Then this morning it was like we had rewinded time, she seemed uncomfortable and her poo had changed back to what it was before, rock solid and very dark in colour. My worries are that she has a dairy or lactose allergy.. Does anyone have any experience in this? I can't amagine my baby growing up not being able to eat certain food (especially cheese because me and OH are cheese lovers!). Really need some advice or reassurance!