Hai everyone, I m 22 male and i was suffering with cardiac anxiety form the past two years and i use to take propranolol 10 mg daily. what i have heard that running and doing exercise daily helps to calm down and and bring wonderful changes . But i m scared of having heart attack during running or doing exercise . Because of this i avoided walking and running and all possible heavy physical works these two years and has been too lazy. Now i strictly want to change my self . Can any one kindly please help me how to start running and exercise . Is there any fatal consequences that if i suddenly start running and exercise. Because i want to change my life and stay happy like every one around me.