Got milk?

Ok... so, we finally have a game plan for the vomiting.  Last week, for 4 days straight, Logan vomited almost every meal.  This has been a huge stressor for us since he's already having so much trouble gaining weight.  After a couple days of lots of vomiting, Landon and I had the realization that Landon was lactose intolerant as a baby.  After talking to his mother, we learned that so were two of his siblings.  Well, we've been using a milk based formula.  So we went out and bought a soy formula, and decided to give that a try for a couple of days.  Yesterday and Saturday, we did strictly soy and...drum roll please... NO VOMITING.  So, after two days vomit free, we decided to add back in the milk based formula and see what happens.  So far, so good.  But, I really have my hunches that Lactose Intolerance may have been the culprit all along.  We shall see... update to come.