If you have had the symptoms evaluated and found no underlying heart disease or dangerous rhythm, the primary concern is to relieve your symptoms and anxiety. Sometimes a rhythm that is not dangerous feels just as bad and is demanding of your attention. So you may still need some more information to really get control. My normal course is to get a long term recording of heart rhythm to compare to the symptoms that you have. There are several techniques that can be arranged through your doctor. Just trying medicines to see if they help generally doesn t. In the interim, avoid stimulants like caffeine, theophylline or guarine as well as decongestants, bleu cheese. Generally, avoid alcohol but especially dark beer and heavy, red wines.