Can allergies develop suddenly?

[Travelbugg]

So my 4 1/2 month old has been having runny, mucusy poops about a week now. Totally happy, no gas, eats normal, lots of wet diapers, no fever. Not fussy. And i really haven't eaten anything new in the last week. Though the week prior I was having a lot of soup bc I was sick. The only different veggie In the soup has been yucca which I guess I could cut out to see (visiting my Dominican in laws they eat it a lot. ) but if it's not that, I'm wondering if babys can develop sensitivities to foods suddenly? Like I've always been a big dairy girl...if we've gone 19 weeks breastfeeding on dairy with no issues, can it then become an issue week 20?

[DamiensMommy1]

Yes.. by what a Dr told me. My grandma had been on a certain heart medication for 5 years. Last month she had an extreme allergic reaction to it and had to be hospitalized.

[JaxMomma78]

Sometimes baby's poops change when they are teething, or if they get too much foremilk.

[Travelbugg]

That's what I was thinking! But after a week I was starting to doubt myself. And the only thing I've eaten different in the past 2 weeks has been yucca and plantains and I didn't think they were very allergenic! As long as he's happy and hydrated and no fever...do you think there is anything else to worry about?

Quoting JaxMomma78:

Sometimes baby's poops change when they are teething, or if they get too much foremilk.

[angelbabies14]

Yes thet can show up anytime. This may not be your LO's issue though.

[JaxMomma78]

No, if it's not bothering her, then I wouldn't worry about it. Baby's digestive systems are funny sometimes. It could just be a change in the way she is digesting food. Don't forget her insides are developing and preparing themselves for solid food, so many changes are happening. If she starts spitting up a lot or if there is blood in her poop then I wd worry.

Quoting Travelbugg:

That's what I was thinking! But after a week I was starting to doubt myself. And the only thing I've eaten different in the past 2 weeks has been yucca and plantains and I didn't think they were very allergenic! As long as he's happy and hydrated and no fever...do you think there is anything else to worry about?

Quoting JaxMomma78:

Sometimes baby's poops change when they are teething, or if they get too much foremilk.

[gdiamante]

More likely it's just the teething.

[collinsmommy0]

Quoting angelbabies14:

Yes thet can show up anytime. This may not be your LO's issue though.

[larissalarie]

Allergies can develop at any time, but my bet would be it's excess drool from teething.

[Travelbugg]

Ok...thanks ladies! Feeling better now!