Ftm please help!

My son is breast fed and had been feeding for about 45 minutes before falling asleep. I put him in his bouncer and he's awake and crying and rooting like he's hungry..

Is he still hungry?

I'm exausted because he'd been nursing nonstop for the last three hours really.. tomorrow he will be 4 weeks

And no he doesn't want a paci. The only way he stops I'd if I hold him and I need to do stuff