My theory is that it is caused by weather modification practices. Hers only acts up here when we have abnormally heavy air traffic leaving con/chem trails which is highly visible with our 300 days of sunshine and low atmospheric humidity. The Midwest is a hazy mess constantly anymore so it's harder to miss but if you pay attention above, your dogs ass is impacting with heavy metal toxins. You'll notice that metallic odor and read into the purpose of this anal gland and determine the same thing as I did. When the skies are shitty, my dogs ass is too. Oh and...if you get a chance...compare Monday Morning Flu/Fever symptoms vs COVID symptoms. Man this is a rabbit hole but welders get the above after being exposed to heavy metals from a long work week, hence Monday morning. This said symptoms mimics everything we've been told is COVID. Create global warming and take our freedoms away thru regulations or extending our life on a failing planet... I haven't determined for sure why they're doing it. But I really hope your dogs ass gets better.