Is this normal?

Im not a big drinker whatsoever. I’m a teenager that isn’t exactly part of the “cool kids” that party all the time or anything like that (which is completely fine by me) but with that being said, I don’t know what’s normal and what’s not. I’ve never been black out drunk or even really drunk at all, but whenever I drink a can or two my back starts to hurt. Maybe it’s not affiliated with it whatsoever and It’s just a coincidence but I thought I’d ask anyways