Not sure what's wrong with me. I'm a 31 yr old female, and I was ill on Saturday just gone. Vomiting, having a hard time staying awake etc. woke with a headache at 8am and just ill for the rest of the day. Since then, I've been fine apart from constant nausea. I feel like I'm on the verge of vomiting and it feels almost like motion sickness. Appetite comes and goes, but if its gone I struggle with the smell of food when preparing my 4yr olds food. I have no other symptoms.