Hi, my daughter is going 7 months old, but she weighs only 6.3lbs,. I m feeding her formula milk promil gold and feed her a teaspoon of gerber once a day,. What I do to keep my baby gain much bigger weight? I had a little prob in feeding her milk too, bcoz she only drinks 1 to 2 ounces every feeding... I m a little worried bout her,. Please I need advice. Thank you. Good day.