If diagnosed in the last few months, your pancreas might still be working a bit.
If you're pumping: First of all, is pump working correctly?
1. Try a new bottle of insulin. Insulin could be bad.
2. Less active than before?
3. Getting sick but don't realize it yet? Having more pain than usual? Both cause physical stress. Under emotional stress?
4. Change any meds recently? Using steroid cream for itching?
If none of the above, note it on the calendar. May turn out to be seasonal related to cold weather or allergens.
Those are my usual suspects

Mich