Dogs LOVE to eat! If a dog isn't eating, it's because it's painful to do so.

Irritation in the throat canal, a painful infection, dental problems (not unlikely for an older dog) could contribute.

But I agree with the others...prompt professional medical attention is needed here!

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car