when there is a perfect storm in my body(symptom s: sweating, heart racing, stress, drinking decaf coffee) I get palpitations and it raises my heart rate high.. I take a beta blocker 1/4 of 10 mg. I had recently a echo stress test and no blockages. I have had low blood pressure reading. the doctors have told me for 10 years they are not sure why I get these palpitations. I feel this is controlling my life? I eat healthy. I drink a lot of water. I only drink socially(only if we go out for drinks with friends socially. once every 6 months, maybe) so what do you think is my problem and how can I fix me? thank you, Debbie