likely. like fluorescent lights some people are very sensitive to monitor flicker. (i am one that is very bothered by it , oddly fluorescent lights don't.) the solution is to get a monitor that allows a very high refresh rate, ideally an lcd. i am sitting infront of my mac powerbook right now and it is pure joy because of the lcd monitor. i have a great 19" monitor as well that is capable of doing a very high refresh rate and since i changed to it my headaches and sore eyes have all but diappeared. occasionally i have to turn on my old 15" monitor and it does not take long before it feels like my eyes are shaking.
this is my experience anyway ymmv.