DS is 4.5 mo. he is EBF and hasn't slept thru the night for over a month. He is waking every 3 hours screaming for a feed. I mentioned this to the HV and she said he might be telling me he's ready for some solids at nighttime. He is a big 17lb boy and I'm wondering if my milk just isn't filling enough for him any more? So to keep EBF ing only or introduce something else for bedtime only?