For several years I have been experiencing discomfort soon after sexual intercourse. The discomfort is in the groin area and the tip of the penis. I often get headaches and my entire body can feel as if I am suffering from the flu. I have had the routine types of blood test but have never tested positive for any STD's. I have been on Flomax 0.4MG for the about six years. My PSA is .3, my cholesterol total is 194. It appears that these symptoms tend to come and go. In other words, the symptoms are sometimes very severe. I get a physical at least once each year. I am 60 years old and married. What is the likely cause of these symptoms? What are the cures?