11 Year Old Chihuhua--Seizure?
Sometime today my mum's chihuahua, who just turned 11 in October, was acting a bit strange. She went to get her a treat, and when she came back she found her squatting on the rug, as if going to the restroom on it (which she does when it's been excessively stressful in the house). Suddenly she vomited, her hind legs gave out from beneath her, and she collapsed. Her legs were out and she was entirely stiff, and for a few moments my mum sincerely thought she dropped dead. But then she broke out of her spell and walked away, legs kind of wobbily, but soon recovered entirely.
This is the first time she has ever done anything like this, so my mum thinks it was just a spell; however, I think it was a seizure. I can't seem to find any information that fits the bill, though. Most sources I have found suggest that most older dogs without history of seizures should not have seizures unless as an added symptom of something worse (which she is a fairly healthy lady, despite her age), and they almost always state that convulsions are a must in seizures. However, searching her symptoms alone result in links to seizures.
So, that leads me up to my questions: a) Is it possible that this was a seizure? b) Are there any other possible conditions where this could occur? and c) how does her age affect her tendencies for conditions like seizures?
Sounds like a seizure or could be also a syncopal episode which may occur when there are problems with the heart. An underlying heart problem can be diagnosed with chest x-rays and an echocardiogram. When my dog has seizures, he would act like shrunk a bit and stumble when walking. Sometimes he acted as if he was blind and had behavior changes. Instead, when my dog had fainting spells due to a heart problem, he would collapse, almost like if he was dead but then would recovers completely within seconds.