I'm sorry you've been going through this, it sounds like a real poop situation. Do you think there could be a possibility of any dietary intolerances? Like dairy, soy, wheat? The usual suspects... If you were breastfeeding these proteins can pass through breast milk. It's hard with bubba's, they have such delicate bowels and once they're stretched the constipation can keep reoccurring. Good luck ❤️
My son had the same symptoms since he was a few weeks old and so last month we took him to a gastroenterologist who said he’s not constipated but he’s actually withholding poo because it hurts him to go! So he holds it in so much until he can’t anymore which makes it worse when he does. Not saying this is what your little one is going through but just a thought. Might be worth seeing your paediatrician or a gastro doctor for advice, and to make sure there is nothing else going on. Our doctor said it’s really common for this to happen.
We had this for a long time. I found fish oil vitamins helped. I also add chia seeds and flaxseeds to at least one meal a day.