Side hurts?

Ok, I’m not a heavy drinker in fact most days I don’t drink. But nights after I’ve been drinking I’ve had a pain in my right side, it usually goes away once I pee… I usually only have three beers and a shot when I do drink because I know my limits. I’m in my early twenties and I drink twice a week typically not drinking anything during weekdays. Is this a problem or normal? I’d rather not fuck up my liver just in case…