Tension type headache everyday.

Hi all, I've been getting headache everyday for the last 10 days. The headache is not like migraine since I can work normally and no sensitive to light and sound. The headache usually starts either right when I wake up or an hour or two after I wake up, stays for a while and then goes away. It kind of comes back again in the evening and in the night and goes away before I sleep. The pain is variable and keeps moving from the eye, eye brows on both sides, temples and the back of my head. The pain is mild that sometimes i need to concentrate to feel the pain. The pain is either like a tight band or like stabbing. I went to a physician and he did a physical neurological exam and everything was normal. Can this be brain tumor or just regular headaches? Thanks