My baby cries constantly and seems to be in pain, what''s wrong?

Sounds like your baby has colic, which is trapped wind. It does cause discomfort and that is what your baby is trying to tell you by crying. You could try massaging the tummy or winding frequently throughout the feed rather than wait to the end. There are medications you can try but you need to consult your midwife or doctor for advice on what''s most suitable for your baby.