I Have Had Numerous Kidney Stones. I Have Been On

I have had numerous kidney stones. I have been on Flomax for over a year. The stone problem is under control and has been for over six months. Over the last year I also lost 35 pounds. I also have a-fib that has come under control in the last 8 months. I now find myself having episodes of low blood pressure, dizziness, drowsiness. For 30 years I was hypertensive. My doctor recently cut out BP meds and cut a diuretic dose in half. The problem continues, although has improved slightly. In the last few months I have developed problems with e.d. Is it possible that the Flomax should also be discontinued. My urologist said stay on it. My primary care doctor says maybe I no longer need it. Any thoughts.