👉 Fattishness is a state of being excessively fat or excessive in weight. It can be an unpleasant feeling, especially when it's accompanied by other negative symptoms such as headaches, heartburn, and insomnia. Fatness might also cause feelings of sluggishness, dizziness, and irritability. This condition often occurs due to overeating or lack of exercise. If you're experiencing this symptom, seeking medical attention is recommended.