The severity of signs can vary from mild weakness to complete paralysis. (avsspecialists.com)
There are many signs that can point to heat exhaustion or heat stroke in dogs, including excessive panting, difficulty breathing, increased heart and respiratory rate, drooling, mild weakness, stupor or even collapse. (zippivet.com)
Symptoms of overheating in pets include excessive panting or difficulty breathing, increased heart and respiratory rate, drooling, mild weakness, stupor or even collapse. (catdepot.org)