The reason why you feel hungry with yellowish color after meals may be due to hyperthyroidism, diabetes, peptic ulcer and so on. 1. Hyperthyroidism: due to the secretion of thyroxine in a high metabolic state for a long time, so it is easy to feel hungry after meals, accompanied by a yellowish color, sweating, short temper, irritability and other symptoms. 2. Diabetes mellitus: Diabetes mellitus patients with high blood glucose will show symptoms such as easy to hunger, hyperphagia, polyuria, polydipsia, emaciation, yellowish color, and so on. 3. Peptic ulcer: because of the stomach acid secretion is more, the gastric mucosa there is an ulcer surface affects the digestion and absorption of food, so it is easy to feel hungry after meals, accompanied by yellowish color, epigastric discomfort, acid reflux, nausea and other symptoms. If you feel hungry easily after meals, accompanied by yellowish color, it is recommended to consult a doctor to find out the cause of the disease and treat it as soon as possible.