What else could it be?

When a reading looks wrong – and there’s nothing new going on with your stress, sleep or health – here are four questions to ask yourself, says Bereolos:

• Did I miss a dose of diabetes medication?

• Were any of my medications or devices stored improperly

(in the heat or extreme cold) or left in the car?

• Was there any hidden sugar in food that I didn’t know about? (Think about sauces, dressings or fast foods.)

• Have I been grazing all day? If you truly can’t pinpoint a reason, then factors affecting your BGLs may be beyond your control. It’s natural to feel frustrated; talk to your doctor about what you should do to handle these unexpected swings. ■