Fever and dizziness can be caused by a number of things. One cause can be food poisoning. More than 250 known diseases can be transmitted through food. Food poisoning is a common, usually mild, but sometimes deadly illness. Typical symptoms include nausea, vomiting, abdominal cramping, and diarrhoea that occur suddenly within 48 hours after consuming a contaminated food or drink.
Another cause of a fever and dizziness may be a kidney infection. The symptoms of a kidney infection usually develop quickly over the space of a few hours or days, and include a high temperature, fever over 38 ºC or above. Uncontrollable shivering, dizziness, vomiting and diarrhoea. You may also experience pain in your side and back.
Also your dizziness may be caused by your fever which could be caused by some sort of bacteria or virus. Your body raises its own temperature to try and kill off the bacteria or virus as by raising the temperature, the cell of the bacteria or the receptors of the virus can become denatured. However due to this rise in temperature, your body uses up the fluid in your system quicker so that you can become dehydrated which can lead to the feeling of dizziness and light headedness.
The best thing to do when feeling these symptoms is to see a doctor. But things you can do without seeing a doctor are make sure you drink plenty of fluid as both symptoms are signs of dehydration. And it is wise to get plenty of rest to allow your body to rest and recover.