Have you ever heard of...

[Mara'sMommy]

A dairy sensitivity showing up after 3 1/2 months?? My 4 month old has been completely and totally miserable for the the last 3 almost 4 weeks. She went from happy carefree good natured baby to a crying, screaming congested mess. She fights sleep and won't stay asleep very long (15-20mins), runny/stuffy nose, congested, coughing, and resisting nursing ALOT. As in, she screams at the top of her lungs when I try to feed her. I had her on zantac for almost 2 weeks for reflux. No change. I also cut out dairy for two weeks and while she was slightly slightly better at times she never showed a significant change. Then yesterday and today I ate some dairy again and she's been really upset all day today. Is this possibly? Everyone I know says that it usually shows signs earlier and you will see a difference within a week. I know it can take 3-5 weeks to completely leave mine and her system. Thoughts?