The symptoms of an anxiety attack can vary from person to person and sometimes even from one person to another, but they are generally very similar and well-described. We know that a panic attack, or anxiety attack, is an adaptive response of our body to a dangerous situation; that is, it's a response that can be useful in the face of danger because it prepares us to fight or flee. However, in the case of an attack, the response is triggered "when it shouldn't be" and in a disproportionate way, which is why it frightens us. It's important to understand that, although the symptoms are very unpleasant, they are not dangerous because they are programmed to save our lives in the face of real danger.

Thus, for example, everything necessary to save life is activated, such as the heart (hence we may feel tachycardia, palpitations, rise in blood pressure), breathing accelerates (dry mouth, hyperventilation, which can lead to dizziness), muscle tension increases (sometimes causing tremors, restlessness, rigidity), blurred vision or a feeling of unreality appears (the pupils dilate to focus attention on the danger), and what is not necessary at that moment is deactivated, such as digestion (sometimes one may have a feeling of nausea or diarrhea)