My DD has a MPI that she's pretty much had from birth that we just discovered 2 weeks ago. She's been on soy ever since, and she is a completly different child. She was throwing up 10+ times a day and was fussy most of her awake time. After the switch to soy, she is no longer throwing up and is no longer fussy. However, this past few days she has started throwing up again and I've noticed she has a small rash on her face after she has bottles. She seems a tad fussier, but she is also getting a new tooth, which could explain the fussiness....
So My question is I've heard that 70% of babies who have a MPI also have a SPI. Can they develop it over time? Because shes been fine with soy, and now it seems to maybe be bothering her? Could she have just developed this intolerence in the past 2 weeks?