Hello dear Greetings Regarding your experience with palpitations that wax and wean I am suggesting that you are gradually developing the following differential diagnosis Panic attack Premenopausal episode Hypertensive disease In view of this please check your blood pressure and do the following test Complete blood count ECG Meanwhile please see a cardiologist specialist and a psychologist for expert clinical evaluation as well adequate drug prescription Studies have shown that not all patients with palpitations are pathological I hope this helps Regards