I started seeing a psychologist and they have ruled out panic disorder. I take Toprol XL
25 mg. twice daily and Lopressor
25mg and Ativan .50 mg when I'm having an episode. I had 20 year history of sinus tachycardia (for which I had learned to live with) prior to October, My new diagnosis is supraventricular tachycardia and atrial tachycardia. I understand the tachycardia, but wonder if the chills and dizziness are part the phenomena?