my baby is 1.5 months yr old. he suffers from loose motion along with blood in his stool since 2 days. fever was also there for loose motion.. he cried when he pooped probably because of that infection he had pain in his abdomen. today he has no fever but he has loose motion , after he ate then he pooped but after dinner he didn' poop. But suddenly he woke up at night and cried a lot . what might be the reason?