Precursor to labour... or dodgy curry?

I've had a terrible upset stomach all day. I've been nauseous and even had the dry heaves. It felt like morning sickness had returned. I managed a small bowl of cereal this morning and that's been it all day. Well, except for the box of chocolates I had packed in my hospital bag. They were the only thing that sounded appetising. I 'shared' them with Toby, which means that he ate the majority of them. I do feel a little better now (and he's running around like a madman) but I'm still like a zombie. British Gas had to come out today to cap an old gas pipe and I didn't even offer the guys a cup of tea. Shock horror! That is the height of bad manners but I was so zonked that all I could do was sit on the couch, nod when they spoke to me and pray that they would be quick so that I could return to the sanctity of the loo.