16 months ago, I began a series of CAT scans, all of which revealed multiple lung nodules. Recently, the dry cough has become severe, and I ran a fever, which responded to a Zpak given by my doubtful GP.
I've been using a CPAP since 2000, but have never paid much attention to washing my supplies, nor replacing them in a timely fashion. Nor have I used distilled water in my "heated" humidifier, as that is an added expense. The machines have been replaced a few times though.