Advice?!

M • Mommy to a toddler boy and babygirl on the way 💙💕

FTM and I’m EBF my 17 day old son. Since this morning he’s projectile threw up 3 times. I took him to the doctors and they said to keep monitoring it. I know it can mean something serious but has anybody had this experience and it turns out to be nothing? Also any advice to help this? Please help! 😩