I have bounding pulse that is very forceful (im forcing it too) and sometimes causes nosebleeds. dr says heart is fine but im scared to die what todo?

Keep busy: You are at no immediate risk of dying from what you described. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex.