How many ounces does your little one drink? My daughter is 5 weeks old and only eats 2 ounces at a time. She always seems hungry afterwards and is eating every 1 1/2-2 hours. If we feed her 3 ounces, she seems more satisfied but will spit up or throw up the 3rd ounce every time. She has been super gassy so we switched her to sensitive formula and added some gas drops. Anyone else experience this? We burp her after every ounce and keep her upright.