Don't worry, your breath is probably fine. Have you ever had something in your teeth or put a piece of clothing on inside out and no one has said anything until hours later? This week a similar event happened to me. I was working with a first grade class trying to help students setup their iPads. I squatted down to a boy in the classes eye level who was new to our school to help him finish the last few steps. The boy who I had never meet looks at me and says, "Your breath smells different." I immediately respond with, "Different bad or different good?" even though I knew where this was going. He didn't respond, so I answered for him and said, "thanks for letting me know, I'll go get a mint!"
I love working with kindergarten and first grade students because they have no fear, they have a love for life, and they tell the TRUTH with no filter. I honestly think the boy was sincere in his statement and not trying to hurt my feelings. He said my breath smelled "different". Telling someone the truth is a loving act!
Often our first reaction when we hear some hard truths about ourselves we respond negatively. We may reject what we hear, complain about it, blame others, or try to defend ourselves. I'll be honest, my first thought to the students response was, "that was a rude thing to say." When in reality, when I stepped back (smelled my actual breath with the universal breath into your hand mask test) I realized he was right, honest, and just trying to help me out.
Now having bad breath isn't a hard truth to receive. Maybe you are being evaluated by your boss. Maybe your spouse or significant other is pointing out an area of improvement in your life. Maybe it's your kids asking you to put away your phone or spend less time at work so you can spend time with them. Whatever your situation may be, before you respond, see the act of telling the truth as a loving act rather than an act to tear you down.