My male baby is 70 days old. For the past 4 days he is crying excessively at night .usually starts around 12 am  ( showing hunger signs but he would have taken the last feed only 30 mins ago ). He is being calm ony when we lift him up in the shoulder or placing him on the chest during night tj e . I tried removing diaper, tried feeding him ,tried giving hot water sponge nothing is working. It's really heartbreaking when he cries like this . Please someone help her about the problem .should I consult a doctor ? During day time he is one of the happiest baby .