Good day! We've been at it for 18 days ? and 17 sleepless nights ? But…

Good day! We've been at it for 18 days ? and 17 sleepless nights ? But they're worth it, I wake up and get some rest in a couple of hours throughout the day, as everything is planned by mom's body. Question: The child started grabbing his hair and crying. Does anyone have this? I try to keep him calm with a swaddle or in a baby carrier. On the internet, they say that it passes over time or to a neurologist. Born with mild hypoxia.