What helps babies with acid reflux?

My baby spits up ALOT after eating. My pediatrician said it’s because he’s over eating. But he refuses to take less than what I’ve been giving him, even if I try feeding him more often but less ounces. I’ve tried burping him after every few ounces but that doesn’t help much + he cries hard when I take the bottle away. The only sign of reflux I have is the spitting up and fussiness after a bottle but he calms down after a min or so. He doesn’t seem to be in pain or super uncomfortable. But I’d still like to help him. Any other moms going through this? Is this even reflux I’m experiencing??