Spit up issues (HELP!!)

Mas

Is anybody dealing with what seems excessive spitting up? I burped between ounces, keep upright during and after feedings, etc. Using similac pro advanced... can’t even go on the stroller or car ride without puking. Doctor didn’t seem concerned because the baby has been gaining weight. We were given samples of enfamil gentlease which seems to do nothing except keep him getting hungrier and not lasting as long between feedings. I know babies puke, but it is stressful to see baby puke after every feeding and after every burp. Any suggestions or sharing stories would help!