There are many things that cause tachycardia, stress, thyroid problems, menstruation
, approaching menopause etc. Occassionally there is no justifiable reason found. I would suggest cutting out alcohol, smoking, drink decaf tea and cof
fee, cut back on chocolate. Certain foods such as cheese can trigger palpitations. Keep a diary and see if you can find any pattern to your palpitations. Don't worry lots of
people have tachycardia and live with it.