My 5 month old shar pei was shivering/shaking when breathing last night for about a 15 minute period of time. After some online reasearch, she didn't seem to have any other symptoms of anything and stopped shortly before falling asleep. She did have a more active day than usual and was given some human food (crackers and cheese). Is this something I should be concerned about?

Was she breathing normally, or panting?

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Trust in me and fall as well.
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just enough to bring you down