Appreciate you sharing and reaching out. I'm sorry for your loss, that is such a hard loss. Stress and poor sleep can certainly increase your blood sugar. If it's high and you feel like you can do it safely, exercise, even a simple walk around the block can help to bring your numbers down. I'd encourage you to seek out support around you. Maybe someone you can talk to about your feelings and this great loss your navigating. In addition to speaking with your doctor, this article on high blood sugar causes may be helpful: https://type2diabetes.com/living/5-causes-high-blood-sugar and this on Exercise: https://type2diabetes.com/fitness-and-exercise.
Sending positive thoughts your way for some comfort and peace after losing your friend. May your memories bring you comfort. Please reach out here anytime, we're here to support you. Best, Kelly, Type2diabetes.com Community Moderator