Hi,

It can be very tough with a high needs baby. it takes all the resources you and your partner have, and unfortunately there is very little understanding for parents in this situation.
I would just want to make sure you are looking for and addressing the underlying causes. Now, that may not be easy - sometimes it's like tipping a 5000 piece jigswa puzzle on the floor and trying to put it together without ever having seen the picture. Often formula can make things worse in the longterm rather than better. And, unfortunately it can be a lot easier to down-regulate your milk supply than to increase it. If your baby is getting plenty of milk, as demonstrated by good weightgain I would be doubting that he is hungry (and don't forget, babies can be hungry for more than food - for his mother, for touch, for being held)
MadB has come up with some good ideas. I would be wondering, is there any asthma or eczema in either side of the family? Anyone have it as a child and grew out of it? Mothers are under such huge pressure these days to give their baby formula. But what happens when that doesn't work? Your milk supply may be damaged and those who urged you to formula feed will be *very quiet*.