Hi, I Recently Have Been Diagnosed With An Enlarged Prostate,

hi, I recently have been diagnosed with an enlarged prostate, the doctor prescribed terazosin 2MG everything was working just fine until the last couple of weeks when I started smelling an odd odor coming from my breath and my taste buds, It kinda smells like car emissions fumes...I don't know what to do, my next doctor appointment is in 3 weeks...any help would be appreciated...thanks,terry