4 week old keeps spitting up and puking

B

I’m not sure what else I can do. She is formula fed. 2-4 ounces every 2 hours.

She keeps spitting up when I lay her down. She keeps puking while I feed her and hold her.

Yes I burp her, I hold her up for 30mins to 1 hour after feeding and she still pukes.

Help! I can’t get sleep! She is still having wet diapers so I’m not worried about dehydration but I’ll continue to monitor her diapers.