What Should I Do About Frequent Hunger In My Infant Who Feeds Every 2 To 3 Hours?

hi my child is 2 months old. I m all time feed him.but he drink breast milk 2,3 hours.In 2,3 hours he drink,burp and then hungry.some time after 2,3 hours he take a nap and some time all time cry, cry and cry .what I do plz tell me.i have enough milk for him but he is always remain hungry.