question: I am having a sharp, throbbing pain in the back lower right side of my head. I am experiencing pain that occasionally travels to my neck, shaky feeling inside, sleepiness, pressure towards my eyes (comes and goes) and feel weak and somewhat disoriented. What is causing this and wha can I do? This has been going on for one week, off and on during the day..they last about half hour to hour each. I do have a history of severe migraine headaches but this is nothing close to that.