Hi A.,
I had a similar problem with my son..He is now 2.5 but his problem started at 5 weeks.. I think your daughter might have reflux. From the time my son was 5 weeks until about 4 months we went through All powdered...Similac.. Similac soy, Nestle good start, NGS Soy, back to similac alimentum. Everyone thought he was lactose intolerant!! Not he case...SO I was at my witts end!! I finally went to Ready to eat Enfamil Lipil.. The RTE formula is thicker than the powders.
I had also started cereal early, back when he was about 7 weeks.. just alittle bit and it seemed to bring down the throw ups not spits.. throw ups.. Which proved that he had reflux.. Doctor put him on Ranidatine(sp)and he did awesome.. when he would have break through, we upped the dose.. He had it bad.. But outgrew it.. In my opinion, and I am not a doctor, she has reflux. If you want to start with a Ready to eat formula.. They are more expensive but it works.. My SIL, tried half and half and it still didn't work.. she didnt want to spend the money. But it really worked.. A friend of mine had a similar problem.. first time mom, and I suggested the ready made and it worked as well. Along with the medicine.
Hope this helps. sorry if it is a bit jumpy.. My 1.5 and 2.5 children are yelling for me..
Totally understand how you feel....
~J. M