 [ Symptoms ] i know it is important not to skip breakfast but what if you have no appetite in the morning [ Disease ] light headedness and weakness are occuring due to a low immunity you have to take multivitamins to boost up the immunity having diarrhoea and fever are an indication of diarrhoea e coli vibrio cholerae are the ones that need to be more worried about food and water hygiene is the most important factor drink plenty of water maintain hydration