Welcome the board of Health care Magic,
Dear Friend. It appears that off and on you are feeling palpitations.
You should immediately consult your Physician/Cardiologist to rule out any heart beat problem. He may advice you for some tests like ECG, or echocardiography
etc, and accordingly he will manage you.
Please stop taking stimulants like excess coffee, tea, chewing betel nut , Pan, Tobacco etc.
Hope your query is answered