Please give me advice!!!!. My newborn is very miserable and screaming 😭! I want to cry for him......

My baby is about to be four weeks old, his belly is very wide and he has had problems with gas not always coming out.

Normally he poops once every morning or at night and he has not pooped once all today! Is this normal ? Or why he’s screaming?

He hasn’t peed in a few hours maybe 2 hours or 3.

He wants to eat after he screams, sometimes he will be asleep and wake up screaming bloody murder!!

My poor baby acts so miserable I just want him to be okay...😭😭😭

He spits up and sometimes when he does it smells like vomit, like acidic.

I really need help. Yes I will call the pediatrician in the morning but for now I really need insight on what could be the issue 😭

He’s exclusively breastfed. I haven’t eaten much today. Maybe that’s it ?

I’ve already tried gas drops