I think im lactose intolerant but im not sure, please help!!?

MILK MAKES MY STOMACH FEEL ALL WEIRD LIKE IM FARTING INSIDE..AND ITS JUST AN UNCOMFORTABLE FEELING, YOGURT ALSO MAKES ME FEEL THE SAME WAY BUT FOR SOME REASON ICE CREAM DOESN'T GIVE ME THAT SAME SYMPTOM, AND YES I DO HAVE DIARRHEA WHEN I DRINK MILK IN THE MORNING BUT ITS LIKE NOT THAT BAD DIARRHEA.