Hello I am Dr. Joey. Thanks for trusting me to help you and your pet today. I am a licensed veterinarian with over 15 years of experience. I look forward to working with you.
If she has been trembling for over an hour, as it sounds, and cannot stop this trembling, then this is one of those signs that indicates an emergency visit is needed.
Trembling/shaking if uncontrollable and full body can indicate a toxicity of some variety. Or if it is off and on then it could represent pain such as abdominal/stomach
pain. Pain could come from another location as well. Usually with abdominal pain she would progress to have vomiting or diarrhea or you would hear loud stomach growling. There are also other issues such as electrolyte problems that could cause trembling.
I do wish I could provide you with an exact diagnosis but I too would need to perform an examination followed by some testing (CBC, chemistry profile, urine check) to try to narrow down the cause. There is also no good over-the-counter option if this is not clearing which I can recommended. Offering water is fine. I would withhold food until you have her examined by a veterinarian.
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