Baby is 4.5 months old and due to milk and soy allergies (now addressed) has generally never been a great sleeper. But about three weeks ago he managed about a week and a half of sleeping through from about 9 to 3/4, and then going back down after a feed until 6:30 - he needed resettling with a dummy throughout the night but compared to where we had been it was bliss.
For the last week or two it's been going rapidly downhill again and he's now waking between every 45 minutes and an hour all night. I try letting him settle himself but he gets hysterical and I'm not feeding him each time he wakes as I know he doesn't need it, but when I do he doesn't seem particularly hungry, just uncomfortable - he'll wake up kicking his legs as if he's in pain and it seems to be worse if he's pooped less than usual in a day, although he pooped right before bed the night before last and it didn't make an ounce of difference.
I have a toddler with special needs and my husband works really long hours. We switch out at 5am so I can grab a few hours then, but I'm on my knees. Tonight he's been up literally every hour for 45 minutes to an hour each time, and has just woken again after just half an hour down.
Does anyone have any suggestions?