I have been having a lot of medical issues lately and have seen my family doctor. They have referred me to a cardiologist, but i don t believe it is a heart problem. I have been having these near syncope episodes where my heart rate goes above 130, numbness and tingling in the extremeties. The put me on a beta blocker and i am no longer having the palpitations but now my stool is very loose with black stones in it. I have been very bloated and have pain in the middle of my chest right where my esophagus is. Also the bottom half of the whites in my eyes are cloudy. I am extremely concerned because i have no idea what is happening to me. I am a 28 year old white female.