Hi, thanks for using healthcare magic
Hyperglycemia (high blood sugar), can be associated with
headaches in some persons so it is definitely possible that this is linked to the headache that you are experiencing.
If the headache is very severe, prolonged or continues to be associated with abnormal sensations then it would be best for you to be seen by your doctor to rule out other causes.
Causes of headaches include
migraine,
neuralgia (nerve related pain- due to abnormal function of nerves in the area), tension headaches,
sinus headaches, a bleed, side effect of medication.
History , physical examination and in some cases imaging by CT, , may be needed to find the cause.
Specific treatment would depend on the cause found
I hope this helps