What disorder is characterized by the episodes involving the following symptoms: heart palpitations, shortness of breath, and faintness?

Anxiety disorders or heart disorders

Explanation:

When the body faces some disorders and diseases, the normal physiology of the human body changes. The changed physiology is shown by the body called symptoms which could vary depending on the cause of the disease.

Sometimes the body shows the same symptoms for a different disease like in the given question as chest pain, shortness of breath, headache and nervousness. The symptoms are common to Anxiety disorders and heart problems. So more physical symptoms must be studied to decide the symptoms.

Thus, Anxiety disorders or heart disorders is the correct answer.