badbreathsecrets. webtradingcenter. de What My Doctor Told Me About Halitosis – The Bad Breath Secrets. There are other telltale warning signs as well. · Is your mouth frequently very dry? · Does milk or coffee leave a bad taste in your mouth? · Do you have post nasal drip? · Do people regularly offer you breath mints? · Is there a white coating on your tongue? · Is your saliva thick? · Do people frequently turn their heads or back away from you?