Falling asleep after eating can be a symptom or indicator of diabetes, specifically when combined with other factors or symptoms. Here are eight points related to this:

1. Postprandial Somnolence: Feeling excessively sleepy or drowsy after a meal is known as postprandial somnolence.

2. Blood Sugar Levels:  A sudden spike or drop in blood sugar levels after eating can cause drowsiness or fatigue.

3. Insulin Response:  In individuals with diabetes, the body may not produce enough insulin or respond adequately to insulin, affecting blood sugar regulation.

4. High Carbohydrate Meals:  Consuming large amounts of carbohydrates can lead to a rapid increase in blood sugar levels, triggering drowsiness in some people.

5. Type 2 Diabetes:  Post-meal sleepiness can be more common in individuals with type 2 diabetes, especially if blood sugar levels aren't well managed.

6. Hormonal Responses:  After a meal, the body releases hormones to help metabolize food. In diabetes, these responses might not function properly, impacting energy levels.

7. Need for Energy:  The body may divert energy to digesting food, making one feel sleepy due to a temporary lack of energy for other activities.

8. Consultation:  While post-meal sleepiness can be linked to diabetes, it's not the sole indicator. Other symptoms like increased thirst, frequent urination, and unexplained weight loss should prompt a doctor's evaluation for diabetes.

If you are facing any symptoms from these then you need to consult with doctor.