my heart has been beating very hard,i can see my heart jumping sometimes thru my chest,my vision gets blurry,i have head aches and chest pain,recently my nose has been bleeding too.heart disease runs strong in my family.my heart has always been healthy,i always had perfect blood pressure and even now since this started only the bottom number is a little higher.i have weird chest pains and tightness.my heart beats so hard i cant go to sleep,when i do fall asleep i am waking up with head aches or pain in my chest and arms.i feel pain straight thru my chest to my shoulder.please help,i am 32,my matenal g-mama has congestive heart failure,my mom arythmia,my sister leak in a valv,my paternal g-mama died from hardening of the arteries.