My son is 13 months old and has been waking up screaming nightly. Most nights he is inconsolable. I m weaning him from breastfeeding and just took away the final feeding which was the night time feeding. He also just got a molar and seems to be getting more teeth. I had his ears checked last week to make sure they were clear and that wasn t the cause of his screaming and wakefulness . He also seems to have a red rash behind his knees ( I didn t see it anywhere else). He does seem to have some gas when he wakes up, but that could be a result of the screaming. Do you think the rash could be a result of an allergy or intolerance to something which is causing him to wake up and scream or could it one of the many other reasons I metioned ( teething , weaning, etc. ). Thanks.