Epidural inh\jects affect the entire nervous system. we have two, the autonomic and systemic. the autonomic are basically self controlled. And are base don feedback frfom all neuropns and axions working. If these are blocked all systems fry for a short period of time. that means your body wont react to any stimulus the way it should. Since the epridural breaks the axion bonds you won't be in control as much as you should. Also pain release cortisols into the systems which elevate BG levels by releaseing glucogen from the liver to allow for a back up system of adrenaline to be produced.
By interrupting the action reaction feedback you elevate. thats why when you are injectable pain medication it is not uncommon to be placed on insulin instead of oral medications.
Since we begin to produce ketones at 180mg/dl and that can cause more damage insulin helps to prevent ketosis. With your Bgs elevating and possibly spiking between testing your dr. shoudl have advised insulin to maintain control and prevent further secondary complications from the diabetes.
julie