Huge appetite for 1 month 12 days

My baby boy has been drinking 110ml of formula every 2-3 hour, equivalent to 1000ml a day on record. I am very worried if I am over feeding but he cry so much at the 2 hour mark and he seem to always able to finish. So his cycle is 2 hours;110ml. Can someone help to advise us if your child is the same?