Hello- I am a 54 year old African-American male. I sporadically present with symptoms of: shortness of breath, dizziness and slurred speech, all at the same time, but, are resting and/or eating, the symptoms subside. I have perfect blood pressure (typically 110-120/72-80 on average), and have no sugar in my urine, according to recent check. I have always had a trace of blood in urine, but nothing serious ever diagnosed. What could be causing these sporadic episodes?