18 weeks old baby crying in his sleep?!

Dara

Dear mumms,

My 18-weeks old baby boy has been having trouble sleeping since last monday. It is so hard to put his to bed, mainly by breastfeeding him. When he is sleeping after couple of hours he starts screaming but not waking up... again soothinh him by feeding him... and this repeats 2-3 times a nite..he does not like pacifiers so there's no help from them... has anyone experienced this? what could you advise for helping ? thanks in advance