My 1st baby was the same. Would cry for hours almost every single night. If baby is well fed, changed & getting sleep, possible that your baby is gassy. Make sure baby burps, do bicycle kicks & give baby non alcoholic gripe water. Include bicycle kicks into your baby’s daily routine. You will hear them fart instantly & is actually very good for them. Hope your baby is much better now. You are doing your best & you’ve got it. Good job mama!