I bought some Similac Sensitive this morning and so far I've fed her two bottles of it and have noticed no difference. And poor thing just wanted to nurse so badly, so I caved and nursed her. I love nursing so much compared to bottle feeding. No bottles to get ready, no messy formula dripping down her chin, etc. So, I think after I take Olivia to school tomorrow, I'm going to visit a lactation consultant. It is free at the hospital where she was born. Maybe they can provide some insight as to what is going on. Praying for answers. I just want my happy baby back. I also have an appointment with Dr Scharenberg on Monday. After 10+ recommendations, I have to check him out!