I have been sick sense Saturday at first I thought it was my period but it not it all started when I was walking I started to get light head and then I had the feeling of vomiting and I did and ever sense Saturday I haven't been able to eat anything and if I do eat anything I will vomit it back up and now it Monday and I'm still not feeling good what going on with me. All I'm able to eat is crackers and I can only drink sprite and water.