So, how can you tell if your blood sugar is spiking? In the short term, Inchauspe says you might feel really hungry (even right you eat), experience an energy slump after a meal, or have cravings for sweets. Blood sugar spikes can also affect your sleep, making it more likely that you’ll toss and turn that night.
“Sometimes people who experience a blood sugar spike may feel ‘buzzy’–a little jittery or anxious, or like they’re a bit out of balance,” adds Wendy Bazilian, DrPH, RDN. She says that increased thirst, headaches, inability to focus, confusion, and blurred vision can also signal a blood sugar spike, but these signs usually only occur if your blood sugar is elevated above a normal range and often warrant a check in with your healthcare provider.
In summary, blood sugar spike symptoms can include: