I am probably clutching at straws... I'm only a day late, and cycle is a bit wobbly at the moment anyway.
Had dinner with DH and friends last night - all ate and drank the same. I was up at 2:30am throwing up (TMI) and then have had, well, the runs since then. I've only drunk water and ginger tea, can't really face food.
DH and friends are fine. No-one else has a bug that I know of. I know the answer to this is "go and get a test!" but did anyone ever get diarrhoea with their morning sickness? (I haven't had morning sickness before).