I'm not keeping anything down. I've had nothing but fluids since getting up at 7:30am. I'm trying not to drink huge amounts as I am vomiting a lot. I don't know where it's all coming from. There's also not a lot of warning (unusual for me). DH has already had to mop the floors once 'cause I didn't make it to the loo on time. As the day goes on I'm feeling worse, more tired and shakier. DH mentioned going to the hospital if it doesn't improve. How long should I give it before going?

I should add that I don't believe it's anything I've eaten. No one else is sick and I didn't eat anything they didn't yesterday.