Your pet may be panting heavily and persistently, more than usual.
An increased heart rate or pulse rate can indicate heat stress.
Your pet may be drooling excessively, which can be a sign of distress.
They may appear unusually tired, weak, or reluctant to move.
Heatstroke can lead to gastrointestinal upset, causing vomiting or diarrhea.
Their gums may appear bright red or pale, which can indicate heat stress.
In severe cases, your pet may be unable to stand or move properly.