Why do you have a stomachache when you eat cookies and have to go to the toilet!

Because you have yang deficiency, especially stomach yang deficiency.

Maybe you have a bad stomach, and the cafeteria meals are just over the critical point you can bear.

If you don't eat regularly for a period of time, it will cause autonomic dysfunction. And then form a habit, but this habit is very bad for health, due to the increase in blood demand in the stomach after eating, squatting or sitting not only causes pressure on the stomach but also affects blood flow. It can cause many kinds of stomach problems. >>>More

There may be duodenal problems, but it may also be that your daily routine has been disrupted recently, resulting in endocrine disorders, so it's been a long time since you should go to the hospital!

Stomach pain is a physiological reaction, so it's a good way to tell you in advance to be prepared.