My 2 months old has really bad smelly gas and poop... normal? I've changed many diapers in my…

My 2 months old has really bad smelly gas and poop... normal? I've changed many diapers in my lifetime but just dont remember any of them smelling as bad. I should contact his Pediatrician, but just thought i'd ask you ladies first... i'm pretty sure the Dr/nurses would just recommend me to go in, but i really cant afford another bill at the moment. Also, my babys poop is dark... perhaps you can even say almost a super dark greenish color, and usually in form of melted chocolate. Normal? Sigh😞

... one thing after another.