DS2 is almost 1 and has so far been a very placid baby who would go to anyone and rarely cried, but has always wanted a lot of cuddles. He's also been a brilliant sleeper- breastfed but slept through from about 4 months, self-settling with his thumb. In the last couple of weeks he has started shrieking hysterically when he wakes at night, and I can't settle him back in his own cot. Hes not asking to feed, but he is inconsolable when I try to put him back, so he ends up in our bed. This is a new thing, he's not coslept at all since he was a couple of months.
I think it must be separation anxiety, because he has now just stated shriekingr in the day when I leave the room, or when I am out of his line of sight. I have just gone back to work last week which is likely making things worse, but it wasn't what started it off as the problem began before I went back.
I know it's a common thing, but what do I do at night to prevent him waking his brother? Should I just let him cosleep for a bit or will that cause other problems? How can I make him feel more secure?
Never had this at all with DS1! Thank you.