I was mostly breastfeeding. But the more I supplemented the less he nursed, the more formula he got. Ear infection, stopped sleeping through the night, cried ALL day and night. I was told my baby was simply spoiled.
It was so bad, I called my mother (lived out of state) and begged her to send us a plane ticket before I hurt my baby. I was worn out and scared to death. We hadn't been with my mom 12 hours before she insisted there was something very wrong. Six month old babies just don't cry like that, she said.
It took a few weeks, but we figured it out.
My experience was nearly EXACTLY the same. Stopped nursing at 10 mos. Put on milk. Immediately started getting sick. It went on and on and on. It was just horrible and to have a completely IDIOT doctor say he couldn’t be allergic to milk was just outrageous. And this is/was actually a VERY well thought of pediatrician. Unbelievable.