Hi,
Your symptom of dizziness was most likely due to high blood sugar. Hyperglycemia can cause dizziness and drowsiness.
Please make sure you keep your blood sugar levels under control by dietary control and blood sugar medication.
Also make sure you keep yourself well hydrated by maintaining your fluid intake.
Keep us posted.
Your sugar was a tad high. You know what you have to do about that.
These symptoms tend to be self-limiting, and go away after several days. There asre numerous possibilities.
If the dizziness persists, that is another situation.
In the absence of any other information, it probably isn't serious, however without knowing your blood pressure and pulse, as well as having an arterial blood gas I wouldn't want to hazard a guess.
If the symptoms don't resolve within five days, seem to worsen or recurr again see a physician.