My DS is 11.5 months and suddenly (like overnight) has terrible separation anxiety. As soon as I leave the room he freaks, and conveniently this started just before we started daycare (but that's a whole separate post).

Anyways I'm wondering about bedtime. I've been holding him till he's fast asleep, but the second I put him down in his crib he's absolutely hysterical. I can't leave him like that.

Any tips? When will this end??