Breastfed babies can go up to 10 days without poop.. but your baby seems to be very uncomfortable.. crying even when farting seems like not very normal.. I think it's best to bring to PD..
have u tried gently massaging baby’s tummy? can use a baby oil - it helped my baby to fart and poo. do see a PD though as it’s been quite long - 7 days.
There’re suppositories suitable for babies to help them poop. If your baby’s suffering so much, can consider bringing to see a PD
Some breastfed babies can go up to 2 weeks without poop. Pedaling baby's legs as if he's cy cling can help relieve wind
Ridwind! The Pd that I go to, suggest to only go see a doctor after 7 days of constipation