you can come out of theis obession by counsulting a phys'trist.. you will have to take medicine for two months ... u will be fine and you will never think of the heart ...
i am sorry to say that u might have undergone a lot of stress due to this ... but dont worry medicne are there which can hit on target and get you out...sit for a counselling session pray to god and have a great time this is only a slight obession ..
all the best