DS2 has always been a pretty good sleeper (difficult to get down at bedtime but regularly slept through from 8 weeks), got slightly worse around 4 months, got slightly better again, but the last couple of nights have been atrocious: WIDE awake and thrashing around every couple of hours, not particularly upset but then getting upset if he doesn't get picked up/cuddled/fed.
I suspect it's a combination of teething (though I've been dosing him up on baby Nurofen), tummy still getting used to solids, and trying to crawl, but it's HIDEOUS. Not sure what I'm looking for here except sympathy and maybe a bit of "this too will pass"....