I have had slight headache consistently for past 6 days. i have some fatigue/less energy, but no blurred vision or nausea. ?

Vague headache: Those are pretty vague complaints but never the less very annoying. I would first of all drink a lot of water. 8 glasses of 8 ounces or more a day. This could be dehydration. I would then get my eyes checked. Sometimes a slight loss will not be recognized and will give you vague headaches. Next I would get a check up with your primary doc to get the electrolytes checked. good luck