Do you feel that you have anxiety? Part-1 Before diagnosing Panic Disorder or Generalized Anxiety Disorder (GAD), it is important to rule out physical causes that can mimic anxiety symptoms. Conditions such as anemia, thyroid disorders (especially hyperthyroidism), hypoglycemia, cardiac arrhythmias, asthma, gastrointestinal disorders, and vestibular problems can present with palpitations, shortness of breath, dizziness, chest discomfort, and tremors. Certain medications and substances including