Question Details
Intense Shivering In A Dog
by CorinneC - October 23, 2025    View Case Report
MitzaeMae is a 5yo FS Mi-Ki cross (boutique & tiny at 4.13kg) who I have seen her entire life. She has always been fed raw and had a finicky appetite, had minimal vaccines and titres, and is very well cared for. She came in to see me Dec 2024 for intense shivering episodes, sudden sudden voracious appetite, and drinking a bit more. Up until 2 mth ago she would often sit and shiver and not eat. She is icking things and people a lot too. Anxiety and jumpiness have slowly increased over the last year and she is more reactive with dogs on-leash which she had never been until this last year. Her tongue and pulse appeared WNL, I assumed a leaky gut & dysbiosis due to Qi Stagnation from Shaoyang disharmony, so I placed her on Halscion. Over the next 2 mth, she seemed to improve, shivers regressed, appetite settled, and she seemed much less active and reactive.

Feb 2025 O returned saying the shivers are becoming more frequent again and appetite off and on fussy, sometimes she looks hunched. Ran general panel - CBC: Sl elevated RBC and HBG, CHEM: sl ^ BUN - but on high protein diet, ^TP and alb - inflammation - teeth, liver?, ^ALT and tbili - liver inflammation - poss PVH? Rec bile acids - moderate to severe elevations (>40) found. Given TDG codeine prn for pain and ordered abs U/S. IN the meantime, I added Ge Xia Zhu Yu Tang (for the analgesic effect because she seemed more irritable, restless, painful) and milk thistle as I suspected PVH/MVD. Confirmed microvascular dysplasia on U/S. Reran bile acids: both elevated again, even further than last BAs: pre 63.7, post: 89.7.

By April, O reported she is better on herbs, but appetite still waxes and wanes. Way more living and cuddly, way less aggressive, less reactive on leash. No real intense "violent" shivering lately, had only had to give codeine once. BMs mostly WNL, maybe a little softer, but well formed. At this point, I addied Xiao Yao San to better reduce inflammation and improve liver perfusion (and hopefully improve appetite, BM consistency, and EN).

She did well all Spring and summer for the most part, dental in June, but came back October 15th. Since Sept 10th eating better again, but prior to intermittently reduced appetite, rare shivers. O gave Ivermectin horse paste/liquid on Sept 10th and SID for a few weeks, and had been eating really well until recently again. However, licking wood now, licking more in general - at the floor, O's pants, occas carpet, but sporadic and doesn't spend a ton of time doing this. Last 3 days shivering intensely again, seemed uncomfortable, hunched back, eyes sunken. Started codeine again 2 nights ago, just at night, reduced violent shaking. Last 2 days appetite sl reduced, but generally had been more voracious on occasion too. Still on 1/8 tsp GXZYT BID, 1/8 tsp XYS BID, 1/16 tsp Halscion in am only (had dropped this down because she seemed to get really itchy all over when on BID), and milk thistle 0.35ml in pm. Still has itchy times, but doesn't seem to relate to Halscion. More reactive as well with other dogs this Fall. BMs always WNL.

On PE, her tongue is pink, sl dry (but excited and panting), sl swollen in appearance; pulses sl taut but toned. She is in excellent physical condition, BCS 4/9, BAR, lively, and sweet. The shivering again I think is Liver Qi Stagnation, the licking either Dampness or Stomach Yin deficiency. I decided to increase the Halscion back to BID and aim for 1/8 tsp BID. The O now thinks her itchiness was due to an environmental cause. Then I started to doubt myself with the sl swollen tongue and wonder if I should switch her from GXZYT to DGSYS or YGJ? I know the Fall (and morning) is when there is major seasonal changes in circulation, esp with the liver, causing elevated liver enzymes due to impaired portal circulation. YGJ makes sense for low grade itch, reactivity, pale tongue, abd pain, but she's not losing wt, V+, nor does she have a strong appetite. XYS makes sense to move stagnant Qi (shivers), but her stools are WNL, no overt Dampness that I can see though other than tongue? DGSYS for reduced appetite but may be too drying?? Now I'm all confused again!!!

I would love to take bloods again on this dog but it is a real struggle, she is so small and cries horribly. We had to sedate last time which I obviously prefer not to do.

HELP!
Corinne
Replies
by naturevet
October 25, 2025
Hi Corinne,

The shivering and hunching and the timing of her issues make me think she has a tendency to a gastric ulcer. Any chance of hookworms associated with that (given any response to Ivermectin)? A fecal might be a good idea.

Meanwhile, I like your idea of Yi Guan Jian. Since it is in Halscion, that might be one reason why she did well on the formula (and not just its anxioytic effects). She had a strong appetite and thirst in deep winter, when Yang is maximally trapped in the Stomach, potentially aggravating dryness. Chronic weight loss doesn't have to occur in Yin deficiency, so its absence doesn't mean anything. Remember, in Chinese medical diagnosis, you only have to make sense of everything that IS there, not discard a diagnosis because of what ISN'T there.

I would try Yi Guan Jian next, probably in place of Xiao Yao San. Halscion is fine to continue

Hope that helps!

Steve
by naturevet
October 25, 2025
Hi Corinne,

The shivering and hunching and the timing of her issues make me think she has a tendency to a gastric ulcer. Any chance of hookworms associated with that (given any response to Ivermectin)? A fecal might be a good idea.

Meanwhile, I like your idea of Yi Guan Jian. Since it is in Halscion, that might be one reason why she did well on the formula (and not just its anxioytic effects). She had a strong appetite and thirst in deep winter, when Yang is maximally trapped in the Stomach, potentially aggravating dryness. Chronic weight loss doesn't have to occur in Yin deficiency, so its absence doesn't mean anything. Remember, in Chinese medical diagnosis, you only have to make sense of everything that IS there, not discard a diagnosis because of what ISN'T there.

I would try Yi Guan Jian next, probably in place of Xiao Yao San. Halscion is fine to continue

Hope that helps!

Steve
by CorinneC
October 27, 2025
Brilliant Steve, thank you for making sense of my messy case! She has gone home with YGJ today and we will see how she fairs. I feel like this is a good fit.
Corinne
by CorinneC
November 2, 2025
Within a few days the shivering and nausea went down to nil on the YGJ, took off XYS. O very pleased, thank you as always for your help.

Corinne
by naturevet
November 4, 2025
Phew! So nice to hear!!!!
by CorinneC
February 3, 2026
Mitzae is presently on GXZYT, YGJ, and Halscion. Trying to figure out why she has this anal gland issue and poor appetite, seems like stagnation to me?? Shivering makes sense if so, but I would think the GXZYT and Halscion are helping to move Blood, no?
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