Question

whenever i have anxiety i can’t eat, why is that?

Answer 1

Answer:

When you're anxious, your body responds. Anxiety triggers emotional and psychological changes in your body to help you deal with the pressure. These changes often affect the stomach and digestive tract and can make you lose your appetite

Answer 2

Whenever you have anxiety, you body doesn't not respond properly which makes you to not eat anything. Anxiety is basically stress, which gives you some kind of fear, this stress changes the affect of your stomach which makes you lose your appetite.

If stress is the reason, you hunger would return after you feel relaxed.