Why do I feel weak all over every day after lunch, and what should I do about it?

Generally, feeling weak all over after lunch every day may be caused by factors such as overeating at lunch, iron-deficiency anemia, autonomic nervous dysfunction, and other reasons. Appropriate treatment should be based on the specific cause. Details are as follows:

1. Overeating at Lunch

Consuming a high-fat, high-calorie meal can cause the body to divert more energy and blood flow toward digestion, leading to decreased blood sugar levels and fatigue, resulting in the aforementioned symptoms. It is recommended that patients eat light meals, reduce portion sizes, and avoid excessive fullness.

2. Iron-Deficiency Anemia

Iron-deficiency anemia occurs when there is an imbalance between the body's demand for and supply of iron, leading to depletion of stored iron and insufficient iron within red blood cells. This condition can cause symptoms such as weakness, fatigue, dizziness, blurred vision, tinnitus, and others. Patients with this condition may experience the symptoms described above. It is recommended that patients take medications such as ferrous gluconate tablets or ferrous fumarate granules as directed by a physician.

3. Autonomic Nervous Dysfunction

Autonomic nervous dysfunction refers to a group of disorders caused by impaired autonomic nerve function, affecting multiple body systems. Symptoms may include anxiety, irritability, abnormal sweating, insomnia, and fatigue. It is recommended that patients take medications such as mecobalamin tablets or oryzanol tablets as prescribed by a doctor.

In addition, other possible causes include lack of physical activity, excessive mental stress, calcium deficiency, diabetes, and others. Patients are advised to seek timely medical attention when discomfort occurs to avoid delays in treatment. Additionally, maintaining a light diet and ensuring adequate rest in daily life are also important.