My LO is ALWAYS constipated now.

She used to be regular but the past few months have been hell in the poop department. She is ALWAYS constipated. She doesn’t eat anything that would bind her. She eats a lot of greens and fruits. Drinks tons of water etc so why is this constantly happening? It all started on the transition and to milk from formula and her doctor said that it takes time to adjust to the dairy.. so, I waited and waited and she was always in agony. I’ve tried suppositorys, but consistently using them aren’t good either. I went against her doctor’s advice and started her on almond milk for a month (after waiting for months for her to “adjust” to dairy) and within day’s she was pooping fine, she stayed on it for a month and was regular. She didn’t loose weight, she eats healthy so the only change was that she wasn’t constipated anymore. We then go for a regular check up and I told him about the switch to almond milk and how much it’s helped her and he got really defensive saying she NEEDS cows milk or else she will be malnourished. Obviously, I switched back to cows milk and here we are again, severe constipation and she just sits there in pain all day. Her rummy is really swollen too. What do I do? Any moms experience this with their LOS?

*side note, she eats yogurt and is fine it’s just milk that bothers her*