My 5 week old has been screaming quite violently ( unlike his normal cries) then apparently falling into a deep sleep until he wakes/ is put down when the cycle starts again. He's been like this all day and I really don't know what to do. He's been having infacol for a couple of days to help with a bloated tummy and I missed a couple of doses today but I really don't know what to do. Thank you x