Mama just wants to sleep!

So my 3.5 month old has been a really good sleeper up until recently. He thrashes around a lot especially during feedings. He’s also eating way too fast he takes 6oz every couple of hours and I’m wondering if him eating too fast is causing some sort of discomfort. I’ve tried to stop every 2 oz but he just loses his ever loving baby mind screaming at the top of his lungs until I give the bottle back to him. I’ve tried slower nipples and he isn’t having it gets crazy impatient and just screams. He just seems so restless at night and idk what to do I am so exhausted and just want him to be comfy and for this mama to sleep.