Overwhelmed with anxiety

I have a 2 week old baby and he ate around 7pm 4 oz then demanded another 2 oz not long after. I tried rocking him and holding him but you could tell he was still hungry. So i caved in also because he was weighed today at the doctors and in the 37 percentile so far. So i wasn’t too concerned about giving him a little more but even again another hour or two later, he screamed and cried no matter if i held, put in bouncer, swing, tried to just lay him in bassinet, nothing worked so i gave him more formula because he was literally trying to stick fingers in his mouth, moving his head and opening mouth looking for Nipple bottle... i am just worried that I’m over feeding because I’m trying not to!! That’s the last thing i want to do but he was still hungry, what else do i do? I don’t have postpartum depression but anxiety? He is currently content now and hasn’t made a peep, he was burped tons and didn’t even spit up ONCE. We’re your babies like this? Could be growth spurt? I don’t remember since my son is now 4