When I get to the exam, I feel sick to my stomach and always have to go to the toilet, is it a psych

Mental activity is inseparable from physiological activity. Any mental activity leads to physiological changes.

Some physiological changes are great, such as intense fear, which can cause the kidneys and gallbladder to undergo strenuous physiological activity. This kind of physiological activity is difficult to feel in normal times. And under the psychological effect of fear, it can happen. It's the same with anger hurting the liver.

The reverse is also true, because of a series of physiological changes, people named it fear.

Therefore, the division of fear into physiology or psychology is only from different angles of observation and research, but the phenomena are still the same series of phenomena, and there is no difference.

If you understand this truth, you can understand your exam diarrhea problem.

During the exam, there must have been some kind of psychological change, which led to a physiological change - diarrhea.

The model is as follows: to learn the specific solution of examination (physiology) - conscious activity (psychological) - diarrhea (physiology), it is necessary to examine the specific mechanism of mental activity.

There is only one solution, and that is to discover the conscious activities associated with the exam – to disconnect them from physiological activities (such as heartbeat, palpitation, anxiety, etc.) or to reduce the links that produce physiological changes.

I hope this knowledge is useful to you.

Before the exam, I went to Yizhiren and Jin Yingzi to boil water and drink it.