Ok I'll give some background. LO had milk based formula (had been EBF) when she was 4 months old and got horribly sick, puked for over 24 hours straight. Her pedi recommended Gentlease and it did the same thing to her. A nurse recommended we try soy formula. It also made her sick for 11 straight hours, with the added bonus of awful, un-natural smelling diarrhea. I convinced myself there must be something in the actual formula making her sick so I gave her a spoonful of yogurt and 4 hours later she puked about 5 times and got lethargic.
That was several months ago and since then I've just been avoiding giving her any dairy or soy. But she's not so sensitive that she can't having something that has soybean oil or soy letchithin in it....like Ritz crackers or bread. This morning I gave her about 6-7 bites of all-beef bologna. Four hours later (weird about the 4 hour thing) she threw up a small amount and was pitiful right before she puked. I was waiting for the throw-up fest to begin but after the small puke she perked back up and has held down several ounces of Pedialyte. Usually she holds nothing down for more than a minute when she's sick.
Does this indicate a beef allergy? If so, is it just less severe than her milk/soy allergy? Or do you think she might just be outgrowing it (wishful thinking here)? She never throws up on a regular basis or anything...only when she's been in contact with an allergen.