So yesterday our son had his one year wellness check-up. Everything looked great. He has been on a special formula (Similac Alimentum) since he was little due to a reflux issue. Our doctor had us keep him on that formula all year, at around 6 months we started mixing one scoop of Similac Sensitive to each batch of formula we made. This way he had a little exposure to milk proteins.
Since he started really eating solids, he has had either yogurt or cheese at some point every day. He has had no issues with either of these. Our doctor was very happy to hear that he did not have any issues with that dairy.
Well, yesterday the doctor told us it's time to start the transition to whole milk. He recommended that we do a slow transition, increasing the amounts of milk every few days until he is solely on milk. Our son currently is drinking 4 bottles of formula a day, each at 7 oz. The doctor told us to take out one ounce of formula for each bottle, and replace it with 1 ounce of whole milk. Do that amount for a few days, then take out another ounce of formula, adding more milk, and so on until we are just giving milk.
So this morning we started, his morning bottle had 6 ounces of formula, and 1 ounce of whole milk. He drank it fine, leaving about an ounce behind. He played, ate breakfast, and then took a nap (shorter than normal, 45 min). When he woke from his nap, I gave him his next bottle...same ratio of formula/milk. He drank it, and about an hour later we were out in the car driving to run errands and he started throwing up all over himself. I turned the car around and drove home, you could see he wasn't feeling well and fell asleep for the 20 minutes or so it took to get home. He wasn't showing any symptoms of being sick before this. He had vaccines yesterday (4 total), including his flu shot.
Those of you that have started the transition and are using whole milk. Did your LO have any reactions at first?
I have an email in to the doctor to see what he suspects.