Very suddenly on the way to work a few days ago I became very dizzy, nauseas, tired & felt extream pressure and pain in my neck, head, above & behind my eyes & also had a sensativity to light. This continued all day to the point where I left work early & went to ER. Dr took vitals, did physical exam & told me I was fine. Symptoms persisted, so I went back to Dr 48 hrs later. Again, (dif Dr) took vitals, did physical exam & ran full blood work. Told me they would call me if blood work strange-otherwise follow-up appt in 1 month. It has now been 5 days & my symptoms are the same. My head & neck pressure & pain are almost dibilitating. I have tried getting more rest, eating better, less stress (haven't gone to work) tried heating my neck & head & nothing works. My maternal grandmother had 3 brain aneurisms. I have been a smoker for about 15 years & I have a high stress job. Should I be concerned?