How Can Headaches Be Treated?

I am frequently using diaonil tablet 2.5 mg because I tested my blood sugar level is only in the morning time coming very high some time it is 8.5, some it is 7.5 & some time 9.2 like this. The hospital is far away from the home / office temporary I could not go to visit doctor. Now the problem is I facing headache continuously. Please advise some medicine name also to take along with diaonil tablet.