It may just be a big going round. However, make sure your drinking plenty of water. I get headaches when dehydrated and always drink plenty of water and have a walk in the fresh air before reaching for painkillers. It usually works.
Having said all that, mention it to your doctor on Thursday.
Just googled it ally and you can get head aches but your bs would be rather low or high but mine are high at the mo and I get a little head ach but I don't think it's that realy try not to worry xxxxx how long you been a diabectic
Stay away from candy, all kind of ice creams and sugar products and try any herb remedies, or go for long walk which helps you to down your sugar.
Drink small amounts of water constantly with the gap of an hourr will just flush it out of your system
You can completed cure it without medication just sugar need to be come down and you will be alright.