My first baby had really bad colic, gas and reflux 😭 it is so hard i didn’t know what else to do! We got her gas drops and that helped and also I would feed her hypoallergenic formula (2 oz or less) so she would be full and could sleep. She was breastfed but that helped her to be full for longer. And the only thing that helped her sleep was laying down on my bed with me, I would watch tv (very low volume) while she slept. Hang in there it will pass ❤️
When I can’t get our newborn to settle, he’s usually tired. Try a snug swaddle and a noise machine.
I would assume gas and or Reflux hold her upright for a while see if you can get any extra gas out if not than it's just the her adjusting to being outside the tummy. The 2nd and 3rd night are typically the hardest for babies they be missing being in the stomach (that's wat they dr told me with my first baby)