Well had palpitations for about 4 months now everyday, but last night they have sent me into a major panic. Feel so scared that I'm going to have a heart attack and I'm going to die. How can I stop feeling like this I'm really frightened and really don't know what to do. Gp prescribed me paroxetine last week but too scared to take. I'm supposed to take propranolol 80 mg 3 times a day but I take 40mg twice a day as I'm scared it will make my heart stop. I just need help and advice please can someone help me :(