ds2 is 22 weeks old. We had trouble with him bringing up a lot of his feeds until we put him on milumil. He has been fine on it til now. He wont take it. He starts sucking on the bottle then just spits it out. Is it possible he just doesnt like it anymore?? I am concerned he isn't taking enough now. Should I try a different brand second stage formula now he is a bit older? He might not be sick on it anymore? The milumil is a second stage milk but one that is gentler on the stomach.