Toddler vomiting once daily for a week

Hello everyone,

My 15month old has struggled with gas since first coming home but was never dx w/ reflux. However theirs been times were after meal times he just projectiles. He doesn’t sleep through the night and never has due to HORRIBLE gas, I’ve tried everything. For the past week he has been constipated no fever but vomiting EVERY evening. He eats different things and doesn’t get milk only three formula bottles a day. Has any one else dealt with this? Pediatric will be called in the morning.