If you are taking crying as a signal of hunger after feeding, then your baby might not be hungry. Babies cry for hundreds of reasons, and hunger is just one of them. Babies below 6 months need unrestricted and unlimited access to the breast. Do not time-feed the baby or put any restrictions on time. Watch the baby, not the clock.
If your baby is crying after feeding, it can be due to gas, and they might want to burp. Try burping the baby and letting the baby have breastmilk. Switch the sides if required. You can also try skin-to-skin contact or baby wearing if the baby doesn’t stop crying or doesn’t want to have breastmilk at all.
If your baby pees more than six times in 24 hours and does not have any discomfort or is gaining weight, that means your baby is not hungry. They are getting enough breastmilk.