My lo is 4 months old and he's having hiccups twice everyday. Should I be concern and bring him to the PD?

Hiccuping is normal, don't forget babies hiccups in our womb too. Unless the hiccups prolong for a few hours then proceed to see a pd. Mine is 21 days old and also hiccup twice a day, I just latch her and after awhile she stops hiccuping.