He may be
too hot, especially if it is hot outside (or inside). If so, he should be treated immediately. Move him to a cooler area. Moisten his paws and ears with cool water. Check his
gum color. It should be bubble gum pink and moist. If his gums are pale or blue, seek veterinary attention immediately as this may indicate bleeding or a lack of oxygen. If his gums are sticky or dry, seek veterinary attention. He may be dehydrated.
Pain could be the cause of the symptoms you have described. Check him over for any obvious wounds or injuries. If the symptoms continue or worsen, he should be physically examined by your
veterinarian or at the nearest veterinary ER.