I agree with keeping her upright 30 min after a feed. Also, do you have a nipple shield? If not, invest in one and use it during feeds. She may be swallowing too much air along with the milk, especially if you have a fast let down. The shield might help with that since it helps control the flow of the milk.

When my baby spit up, I try to prop him up kind of like sitting after feeding so he won't spit up if I lay him on his back, he usually spit up. That's really all I know

My 8 year old daughter was like this, in her case it was a milk protein allergy. I cut milk/milk derivatives out and problem was solved after about 3 weeks (my system took that long to clear itself after changing my diet.)

I had this problem with both of my babies. First one was the worst.. I had to switch her formula a few times. But the nurses at the hospital told me do not lay him flat down 30 minutes after eating. That helped with my son. But if he eats too much he spits anyway.

Gripe water helps with most yummy upset. It's helped my guy. He's been spitting up, not sleeping, and overall irritable lol.

She dont take pacifiers too well.

Will she take a pacifier? Try to sooth her with a pacifier and patting her bottom. Patting will help if it's gas and it's comforting to most babies.

I think if it is reflux then gripe water would help.

Gripe water helps with spit up?

She's breastfed.

It's Sunday. Dr is closed and tomorrow is Memorial Day.

I would try some gripe water. Zaman loves it and it soothes his tummy right away. In his case it usually happens when he eats too fast. I still feed him again if he wants it.

Talk to your dr. Could be reflux. A lot of spit up can also be a sign that they ate too much.

Is she eating formula or breast milk?

Do you have any gripe water or gas drops? I would try gripe water first it's been a life saver for Jude.