你再观察下，有可能疫苗的原因

Hyperglycemic Emergencies Associated With COVID-19 Vaccination: A Case Series and Discussion 

Acute hyperglycaemic crisis after vaccination against COVID-19: A case series

 The vaccine-induced hyperglycemia may provide further insight into the underlying pathogenesis caused by the SARS-CoV-2 infection itself. The underlying robust inflammatory response and “cytokine storm” may be the primary precipitant.