Am I producing enough milk?

I’m confused..I’m a first time mom and a lot of the times my poops feel empty after my any eats (he only eats2-6 minutes at a time). If I’m gone from baby for a while I pump anymore from 6-12oz. Sometimes my baby screams while he’s eating, and SOEMTIMES when I switch him he stops crying, but other times he doesn’t want it.

I always hear people saying “your boobs must feel huge” and they honestly don’t...

“when I was breastfeeding when I heard another baby cry in public I would leak” which I don’t

“During sex my boobs would leak” they don’t

“I can’t sleep on my stomach my boobs hurt” they don’t!

This is why I’m confused...does this mean I’m not producing enough?,,