8. Sudden Appetite Loss and Digestive Upset

Acute stress activates the sympathetic nervous system, shifting blood flow away from the gut toward skeletal muscles. Consequently, a dog experiencing high anxiety often refuses high-value treats that they normally devour.

Prolonged stress disrupts the intestinal microbiome and digestive motility. It commonly manifests as soft stools, sudden diarrhea, or nausea accompanied by excessive lip smacking and drooling.

If your dog regularly ignores food during walks or training, you have exceeded their emotional threshold. Move farther away from triggers until your pet accepts food willingly.