I have developed unusual hoarseness. It began a couple of months after I started using Spiriva for COPD. My voice sounded a little strange, but now it is so bad I had to quit singing in church choir (have done that all my adult life) and keep conversations to a minimum. ENT spec said my vocal cords are "stressed" he didn't see any polyps or ulcers or anything out of place. Could the medication have caused this? I sound worse than a teenaged boy entering puberty and sometimes can't even be heard. Sounds break up in middle of words. How long would it take to resolve if I switched to a different medication (already use Advair 250/50)?