I'm very nearly 36 weeks pregnant with my second child. Today I have been sooo poorly. Started with D and V, I've barely been able to drink all day, vomiting continued, only had a slice of dry toast and now I have this weird pressure/ movement type pain where my previous c section scar is. I'm honestly exhausted and can't even stand up. I feel so nauseous. Do I need to worry? Or does it sound like a bug?