Not that I am aware of, no. Of course, that doesn’t rule out the possibility that it might mean something. I have just never heard that an unwarranted garlic smell would signify anything particular.
Generally, a strong smell of roses shows that the Blessed Virgin is around, or St. Therese of Lisieux is sending a sign (probably related to your prayers). The smell of carcasses is believed to be that of Satan however!
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