How tight should a tri suit be?

bought an awesome tri suit from 2xu that arrived today in the mail for my first triathlon. put it on, but it felt really tight and it felt borderline weird to breathe in . almost like skins compression level tight( I use 2xu mcs skins if anyone can relate to that feeling) is this normal for a whole Trisuit ?

I read on other sources the garment stretches and it has to be tight in order to reduce drag. The legs borderline perfect size but it’s the chest and stomach for me. Should I size up from an XS to S or just go with it and wait for the garment to stretch?