Accepted Answer

Hello,

Shaking like this can be due to one of several reasons, which can include fevers, pain, discomfort, or infections. Without seeing any other symptoms besides lethargy, you can't know which is the problem, so I would suggest getting to a vet.

You could check for fever at home yourself. You can buy any rectal thermometer from a pharmacy or grocery store; the digital ones are best as they are quick (usually 10 seconds or less), since many dogs will wiggle. Normal dog temps range from 100F to 102.5F (more active and smaller dogs usually at the higher end). Over 104 is an emergency requiring vet attention.

Dogs with fevers often are lethargic, slow-moving, the insides of their ears feeling warmer than normal, and often their appetite is decreased. You want to offer plenty of cool water, and if running a fever, you can place washcloths or paper towels soaked in rubbing alcohol on the pads of the feet, let your dog lie on a cool surface like tile as opposed to carpeting or bedding, and/or give a cool (NOT cold) water bath, towel drying well afterwards. You don't want to cool them down too quickly as this can send them into shock. A fan nearby, but not blowing directly on them, is also a good idea.

Fevers are also often associated with pain and infections, so all in all it is always best to get to a vet if his shaking and mopiness continue.

Please let me know if I can help further with anything.

Christine

Expert:	ChristineLVT
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Accepts:
Answered:	7/22/2009

Certified Veterinary Technician

Licensed veterinary technician (B.S. Mercy College), 10 yrs in animal medicine and training