I am having some of these issues. I also go to Mayo. I had my surgery back in 2015 Dec. Recently I have been so tired...having odd pains, tightness in my chest, shortness of breath,pain in my arm pit, pain in my left shoulder going down to my fingers and they become achy and numb. I have racing heart sometimes as I lay down in bed and takes awhile to breath normally. I have been having problems with my left eye losing vision as a dark curtain comes across it, but lasting only a minute or two. It doesn't matter if I am driving, or sitting in a chair or standing- I even have some fevers, chills, and going thru sweats. My sternum and chest wall is sensitive .I had a hysterectomy when I was 35 and have my ovaries, thoracotomy to to take out some lymph nodes as I had stage 4 melanoma in 2010 ( cancer free after immunotherapy) Last infusion was 2013. I remain cancer free. I had a myectomy and repair of aortic stenosis and kept all of my valves...Dr Schaff removed the scar tissue on my aorta in Dec 2015. I have been going through a battery of tests since last Friday..So far my scans show everything is basically working great...I do have slight leakage of the aortic valve but nothing to worry about. My labs look basically fine except NT-proBNP,s is 657 pg/mL up about 150 from presurgery labs from 2015. My platelets are low, but they have been low for years since I was in cancer treatment. Echo is fine...MRI appears fine...I had a 48 hr halter and the Dr didn't comment. He is running cultures to see if there is a bacteria...but all my blood work appears within the normal range...even my white count....So all I have left to wait on are the cultures and an eye app't with an ophthalmologist. I am beginning to feel like a hypochondriac...I don't know whats wrong with me