hey. Zoey just starting throwing up alot and ended up yanking her ng tube out of her nose. On the end that goes in her stomach it is a dark brown. Is this normal? I never seen it looking like this before. We think its her formula that is making her throw up all the time,but her doctor wont change her formula. Any suggestions on what to ask it to be changed to? Shes on neocate jr right now 27kcal. I think it is too strong for her. any ideas? Thank you in advance. sarah