Grapefruit varieties are red, pink or white in color and may come with seeds or may be seedless. Its size may vary from four to six inches round. The red and pink colored grapefruits have higher calories compared to the white. Also, the larger fruits have more calories than the smaller ones.
Summary. 1  Loss of appetite can cause fatigue due to low calorie intake and nutrient deficiency. 2  Fatigue means being constantly tired. 3  It may be a sign of an underlying health condition if youâre feeling fatigue, loss of appetite, and other symptoms such as vomiting and bloating.
Eating greasy food can cause sudden nausea. A person who has contracted a stomach virus may also develop a headache. Salmonella, a common cause of food poisoning, can cause nausea. Sudden nausea can be caused by an inner ear infection. Overindulging in alcoholic beverages can cause sudden nausea. Sudden nausea is often caused by food poisoning.