For the last three days my blood sugars have been very high. In response, I have increased my basal insulin by 10% and given myself a meal bolus at each meal but then eat only a fraction of the carbs unless my blood sugar is low or what I expect based on IOB. So after every meal if my blood sugar is either fine or trending low and I will either eat more meal carbs. But if it is high I will not eat the rest of the carbs I put in as a bolus. Over the last three days BG just keep going up and up after the bolus is gone. This despite increasing the basal rate.
This afternoon I finally determined what has been happening is consistent with the pump not delivering basal insulin at all. BG is high and then I take a meal bolus and it comes down. After the meal bolus is done it goes back up and does not come down until the next bolus.
I know the pump motor is working as the bolus is working. Is it possible that for some reason the basal insulin is not being delivered and yet the bolus insulin is? I thought that an impossible situation but it is the only thing that explains my last three days.
Thanks. Can anyone share their thoughts?