While fatty liver disease can occasionally cause fatigue, mild stomach discomfort, bloating, or nausea, other conditions like gastritis, dehydration, migraines, low blood sugar, stress, or vitamin deficiencies can also cause symptoms like severe headache, spinning sensation, weakness, and acidity. Many fatty liver sufferers show no symptoms at all. Avoiding alcohol, fatty foods, excessive sugar, maintaining a healthy weight, and getting regular exercise are all recommended. If symptoms persist, please see a doctor for a proper examination and tests, including liver function tests, ultrasounds, blood sugar checks, and blood pressure checks.