I have a very active little bub. I feel her all through the day on and off just a kick here and there, and then much more extended movement at night when I'm trying to get to sleep.

I haven't felt anything since lunch time. Nothing. I've been lying quietly as well as doing stuff. I've drunk two huge glasses of ice water, eaten an ice cream and had a handful of jellybeans to try and get something. I've got a massive sugar headache so there's no way she's not feeling the sugar too.

When is long enough that I should start to genuinely worry? What do I do?