I constantly get headaches, they are up the back of my neck and in my lower head. should i be concerned?

Headaches: Sounds like a cervical or neck neuralgia which can come from muscle issues or neck alignment. I would see a neurologist for a proper work up

See your physician: The cause depends on many factors, but it could be a physical nerve injury or compression (occipital neuralgia), migraine, or other neurological condition. Keep a log of the timing, duration, location, and severity of these episodes and take the log with you to your primary care physician, who may/may not refer you to a neurologist. http://www.nlm.nih.gov/medlineplus/ency/article/003206.htm