Is it possible for an allergy to develop around 3 months or would I have noticed it immediately? I don't think I've changed my diet, but my 4 month old DD's behavior changed drastically around that time. This is also the time I went back to work and she began staying with a nanny. The behavior first started in the afternoons with the nanny and has been happening frequently with me in the evenings for the past two weeks. I'll try to give you a rundown of the behavior.
The nanny has a hard time getting her to nap during the day. I haven't had any problems with naps and just chalked it up to my having the ability to nurse her back to sleep after waking from her first 30 minute sleep cycle. Now, I have experienced it first hand several evenings. She cries, screams really, uncontrollably. She won't take a bottle from the nanny or breastfeed from me. I keep changing things up to distract her, and each change lasts a couple of minutes before she is screaming again. I go outside, I come back inside, I sit, I stand, I bounce, I rock, I turn lights on and turn lights off...She finally passes out and then she sleeps great during the night. I put her in the co-sleeper when she finally goes to sleep and she gets in bed with DH and me when she wakes around 12:30. She wakes again around 3:30 and around 6:00 when my alarm goes off. When she wakes, she nurses right back to sleep, no problem. I put her back in the co-sleeper while I get ready for work, and she'll sleep until 9:00 or later. Sometimes I have to wake her up. She is always in a great mood when she wakes up and will lie in the co-sleeper cooing for 20 or 30 minutes if I let her. The nanny wore her in the Moby for two solid hours one day last week, and she screamed the entire time.
She also spits up A LOT. It is projectile spit up a lot of times. My first DD spit up just as much but never did any of this screaming, so it didn't seem abnormal to me during those first 3 months without the screaming. Sometimes she spits up in the middle of a feeding. Sometimes it looks like fresh milk and sometimes it is curdled. I have seen neon green poop 3 times in the past couple of weeks and just learned that this is often associated with a food allergy. Oh most importantly, my husband has severe food allergies to tree nuts. He has an immediately anaphylactic response if he even smells peanuts followed by stomach issues. My older DD has been tested for all the things he is allergic to and has only shown a contact dermatitis response to cinnamon, curry powder and artificial coloring.
So, I can certainly fathom that we have some sort of allergy. I'm just confused because she slept all the time and didn't do any screaming during those first 3 months. Maybe it came on later? Or maybe I just really started noticing the symptoms later? I started a dairy elimination diet yesterday and am just trying to get my head around the possibility of going dairy-free for the next 2+ years. I'm eliminating dairy first since it seems to be the main culprit.