Feeding?

So I’ll kind of make this short, my baby is 6 weeks old.. he has reflux, he’s in carobel and some other medicine I forget the name of 🤦🏼‍♀️ basically that’s all kind of helping him.. but he’s now currently taking 6oz of milk through the day and then of an evening before bed 7oz, he eats every 3-4 hours. Naps in the day for about an hour or 2.. I have a fight every single night trying to get him down after the 7oz. But now my question is.. say my baby goes sleep at midnight (after a 2 hour fight to go down after his bottle) he might wake up at 3/4am but if I put his dummy in he will sleep for another hour or 2? Is that ok to do? Or am I starving him? So he could go maybe 5-6 hours without a feed? I’m just a very confused new mum and health visitors arnt very helpful 🤦🏼‍♀️