Hi, thanks for the reply!
It's been going on for the past approx 3 weeks, since I decided I cannot continue to carry him in a sling for all his 4-6 naps. Because of DD1 he got used to sleeping only in the sling, and if at first he could sleep even 3h there, it got progressively worse and worse, to the point where he could only sleep if I would walk with him OUTSIDE, and then he would always wake up just 30 min later. I cannot carry and walk around 6 kg of a baby all day long, he needs to sleep in his bed.
He has no reflux and no other physical problems. He's been to the doc since, and he is just fine. He has no problem lying flat on his activity mat or even in his bed looking at the carousel on top, and even straight after eating, so I can rule out reflux easily.
I used to swaddle, but when he cries before falling asleep he becomes so hysterical, he fights to break the swaddle and I end up holding his hands tight anyway, so I left the swaddle out. It didn't help with the jolts, either, he still wakes up fully and starts crying, no matter if I swaddle or keep my hand firmly on his arms.
We have 3 different pacifiers from 3 different producers, with different shapes. The gag reaction is the same and it takes a while before he accepts it, then spits it out and then starts fussing that it's gone. And repeat from the start, with no exaggeration even 50 times before he falls asleep in the car or stroller.
At night he used to sleep well, he started connecting first 4-5 hrsand then 2,5-3 hrs, meaning he would go down at 8:00pm (falling asleep at the breast), then would wake up roughly 2:00 am and 5:00 am and be up at 8:00 am for the day. Each time he would wake up, I would BF and he'd fall back asleep within 15-20 min, or he would fall back asleep on his own in his crib later.
Since he's sleeping so bad during the day, he started sleeping bad during the night, too. It takes him approx 1,5-2h to fall asleep (falls asleep at breast, I put him in his crib, he wakes up instantly.or within 5 min, we start from the top), is fast asleep finally at around 8:00 pm and then wakes up every max 2,5 h: usually 11:00 pm, 2:00 am, 3:30 am at which point I put him back to sleep on his belly and he sleeps like that from approx 4/4:30 - 8:00 am. (He's next to me and we have a monitor).
I know average A time is 1:30, that means I should start wind down at around 1:10 from when he wakes up, to allow to fall asleep by 1:30, right? I've tried starting at 1:10, 1:00, even 0:55, on the other end at 1:20 or 1:30, I tried starting after 1st yawn or after 3rd yawn, I tried waiting until he rubbed his eyes or starting when he was just staring into space... The problem is, we still have MININUM 30 min of hysterical crying before falling exhausted asleep, no matter when I start. I can't seem to find his "sweet spot!" It happened probably 2 times in the last 2 weeks that we did the pre-nap ritual and he fell quietly asleep within 5 min. I tried to replicate the conditions later, didn't work.
I'm out of ideas. And of patience...