NO!!!! my daughter at almost 3 weeks had the same thing, first at the hospital they gave her ENFAMIL the most common one, then they told me her stool was too watery, then the nurse changed it to PROSOBEE, which later at home got her very constipated and she had blood on her stool. it saddened me i thought it was something that ript inside while she was pushing, but they told me she had a cow's milk protein allergy, so they told me not to feed her prosobee, they change her formula to NUTRAMIGEN!! she does very well with that formula.
NOW IF YOU DONT GET A RESPONSE BACK FROM THE PEDIATRICIAN, I SUGGEST YOU TAKE HER TO THE EMERGENCY ROOM, I DID!!!