I've been noticing that I've been sweating excessively. During routine exercise(walking, yard work, house work, etc) but it seems to occur much more often and seems to be excessive. Along with this I am also experiencing having to urinate over and over again during the daytime, not at night. I am a 66yr old male taking metoprolol for A-fib; also take coumadin and fludrocortisone for A-fib. I have one other new symptom and that is shortness of breath. What could be causing this?