I Noticed My Dog Yesterday Starting Licking The Furniture Upholstery,

I noticed my dog yesterday starting licking the furniture upholstery, bed sheets, my feet and her legs and she on an doff throughtout the day and sh has not done that before. She seems fine otherwise but concerned as it is not normal for her to be doing thi. I started giving her probiotics in her food 2 days ago so could that be the cause?