Ftm need help with feeding

Christine 💍 06.06.13 👰 02.01.18 👶🏼 06.01.19

I had my baby two days ago and I’m bottle feeding due to surgery which left me unable to breastfeed. Yesterday he was drinking 30-60mls every 3-4 hours today he is drinking 90mls (3onces) very hour but then been sick afterwards I’ve been told it’s because he is overeating but I don’t know what my next step would be because I fed him tonight and he had 2.5 ounces then within ten minutes he wanted more then when I gave him more he was sick. Shall I just feed him a certain amount or just give him what he wants?