<human>: I have had two open heart surgeries, since the first one, when I lay down I hear my heart beat so loud in my ear that I can go to sleep without taking something.  will this eventually quit and why is it doing it?  this has been going on for 18 months.
<bot>: Hello, In most probability you had any of your heart valve replaced with a metallic one. What you are hearing is the click of that valve. Generally a patient gets used to such sound. You just need to know that's it's a normal phenomenon and there is nothing wrong with your heart or you. If its very disturbing you may try a small dose of tranquilizer only after consulting your doctor. Hoping I could help. Regards Chat Doctor. 