Today, 06:52 AM
First of all, a big :hug to you. 6 months of unexplained crying is very stressful, and it's a real confidence shaker when formula seems to magically provide a solution to the problem. Put even in this circumstance, I don't think you want to switch to formula. The only way to make breastfeeding work is to continue to breastfeed.
Your baby is gaining weight well and having plenty of wet/dirty diapers. That points to breastfeeding going well on the most basic level. We often say that "breastmilk is best", but making breastmilk into "best" means that we accept formula as the norm, which it isn't. I think it's better to say "breastmilk is the normal nutrition for the human infant", and if you want normal health outcomes for your child, feed her the normal food, right?
After weeks of being dairy and soy-free and no changes to your child's behavior, maybe you need to conclude that if your diet is causing her a problem, the culprits are not soy or dairy. In fact, I would feel free to conduct an experiment- have a big glass of milk and see if your baby's behavior or stool changes over the next few days. If it doesn't, have some tofu and see if that changes anything. And if that doesn't change anything either, maybe it's time to eliminate something aside from dairy and soy. I would start with wheat, because that's the other top allergen, and then consider more exotic things like eggs and nuts.
This is the gold standard for managing allergic proctocolitis in an...