I Have Been Vomiting Most Of The Day And I

I have been vomiting most of the day and I don't know if it's something I ate because the only I ate was something the night before for breakfast the following day so I have been bringing up nothing most of the time, I have been having stomach pain from the vomiting and a fever afterwards I took charcoal as a natural health remedy and brought up is this a small case of food poisoning?