Just an FYI. I have been diagnosed with thiamine deficiency, Wernickes Encephalopathy, post vertical sleeve gastrectomy (4 years post op). I also have PA requiring shots every other week and I am receiving IV thiamine also every other week. I have also been diagnosed with chronic iron deficiency anemia and receive monthly infusions of venofer. Be advised that the Diagnosis for Wernickes is no longer reserved for alcoholism. There has been an increase in VSG patients being diagnosed. The trifecta of symptoms is: memory deficits, ataxia, nystagmus. The Ataxia and Nystagmus resolved within first thiamine infusion.