4 month regression

Kid went from sleeping basically 10-11 hours with minimal intervention to being awake every 45 min and only asleep while being held. This has shifted over night - not exaggerating last couple nights have been hell and very very sudden.

Already do all of the 5s, bed time routine etc. So really I am out of ideas beyond ride it out and hope he stabilizes.

He’s had some severe eczema on his neck and just had his first shots a week ago so those could all be contributing factors.