Baby screaming

La

Hey mamas, my baby boy will be 4 months next week. This happened five or six times so far...he starts crying/screaming over random little thing (in the evening) and he screams so hard I am afraid he will have a heart attack or loose his voice, it’s unbelievable...or I will loose my hearing🙈any other babies having complete melt downs? The only thing that calms him down (after a while) is boob-but while walking...