I live in illinois so obviously we are not taking our month old baby outside for long periods of time til it's warmer. My doctor said I have to give my daughter vitamin d drops. I started them a little after 2 weeks and needless to say she hates them and gives me a super sour face every time I give them to her. I noticed her spitting up has increased quite a bit over the last two weeks so I started experimenting to see why that was happening. Changed my diet, changed feeding times and positions. You name it. I didn't give her the drops yesterday because I forgot and noticed she hadn't really thrown up. Maybe the usual little spit up from moving her too much after she ate but this morning she got her drops after she ate and threw up 3 times within 10 min. Are these drops totally necessary? Anyone NOT giving them to their baby?