In April of 2010 I was hit in the back of my head with Tungsten Steel by my ex husband. I was knocked unconscious for a length of time and I only know this because when I woke up he and his family weren't there anymore. I did not receive medical care for 4 months after due to having to hide from him. I saw a doctor who gave me pills for the headaches I was getting and she said they will disappear over time. They lessened in frequency over the years but I still get them at least once a week. It starts out the same with feeling like I was just hit in the same spot again with the same object. The duration could be as short as 15 minutes to as long as 24 hrs. Its not only painful but makes focusing hard and sometimes blurry vision. Is it normal to have headaches this long after or should I get it checked out again?