Stressed but making it

Samantha

Formula moms----

My son is 18 days old and gets fussy after he eats. I'm a FTM, so everything stresses me out. Is it tummy pain? We use Enfamil Newborn, but I bought Enfamil Gebtlease yesterday and have been trying it today, and he's still acting the same. The Gentlease seems way thinner.

What formula would you recommend? He doesn't really spit up, I'm just concerned it's hurting his stomach