Has anyone ever had to wear a heart holder monitor for 24 hours? My cardilogist is hooing me up to one tommorow and i have to wear it fro a day to see if the palpatations are real or in my head. Today for no reason at 8:30 i started having heart palpations and i got scared. I understand panic attacks when something is going on but why when i am just reading the newspaper? and the palpatations have been lasting all day. Dosent panic attacks last two or three minutes? I even went to the gym and got on the treadmill for 45 minutes to convince myself that it wasnt a heart attack. I dont know what to do