Yep we go through it here on and off every couple of months. Going through a patch of it now actually. Joy of joys.

The only reason I can figure (if there is one) is teeth? Once I've ruled out nappy/hungry/thirsty/unwell. We usually use the teething relief drops before bed and during the wake ups and I *think* they help. Or it just passes until next time.

Hope it all settles soon.