Has he pooped ?? My baby is 5 weeks and she’s on that formula as well I noticed if she hasn’t pooped she’s fussier and cranky so I give her probiotic mommy bliss drops daily to help with a bm ! Also burping every once has helped her too
The gentle ease didn’t help me but the hypoallergenic formula seems to be 🫶🏼 she is less fussier and her poop is returning to normal.
I would take the baby to urgent care