DD has had green poop the entire time as well. I have tried EVERYTHING. I always blockfeed too and that has not made any difference. I even feed from the same side all night and still..green poop. I produce a LOT of milk though, so I'm wondering if that is why. When my breasts are full I can pump 8 oz from one side, although I try to only pump exactly what I need for the afternoons DH is with DD.
Anyway, just wanted to let you know you are not alone! DD is 12 weeks and at the 50th percentile for weight (even on the formula baby charts at the Dr's office), and is not overly fussy, so I am not going to worry about it anymore.