Baby throwing up

BabyBlu🐼 • Mom of Irish twins
My son is 2 weeks old and ebf. He throws up after every meal even if i keep him elevated and burp him. He never cries when he throws up and its not just a little spit up, its a whole lot of fresh milk he just drank. After he throws up he still acts hungry but i usually give him a pacifier to see if he just wants to suck on something and it does he him happy for sbout 10 mins and then he will spit it out and start acting hungry again. When a baby throws up so much, how often should i feed him? I know that he should eat at least every 3hours but what if he's acting hungry even after i just fed him? (and him throwing up)