Hello everyone! I feed him every time he wakes up and cries, it turns …

Hello everyone! I feed him every time he wakes up and cries, it turns out every 1-2 hours, sometimes even less, and doctors recommended giving him often, as he was born small at 2.6kg, and today started crying after each feeding through his mouth and nose, there's no temperature, before that after feeding he would burp and had gas, now this is also present + crying, not sure if it's from overfeeding? I wouldn't say he drinks much, maximum 5 minutes.