Well. I come from austria (mid europe) and I recently finished my studies in engineering physics at the university of technology in my hometown and before that I finished a higher technical college with focus on mechanical engineering and automation.
I'm 27 old have blue eyes and my mother tongue is german.
First time I was affected was march 2014. I bought a new Lenovo (High End) notebook without OS. After some time on the new machine I was wondering what was going on with my eyes. So the ordeal started. I've tried many different notebooks, TVs and mobile phones. But on all systems I get the heavy eyestrain, headache, motion sickness, migraines, pain behind the eyes....pretty fast.
As a result I'm using my old 70cm CRT TV and my old Asus Notebook 2009.
Currently I'm working at the university and I can use my old private notebook which doesn't give me any eyestrain, olthough the display is mirroring pretty much. However I will go on to another company in November, which may get a bit problematic. Since I'm an "expert" in computanional physics and my new job will be very much about computers and simulations. As a consequence I need a solution very fast now.
Furthermore I never had big problems with my eyes, thought I know that they are much more sensitive than others. However my eyes are very sensitive if somebody uses a laser pointer. In this case my eyes will hurt at least for some hous. Also old CRT computer monitors give me bad eyepain, but I've never had any problems with LCD, LED,... till march last year.
Since I got the symptoms also on my older trusted LG FLatron monitors if I connect an new notebook to them, I guess that my problem has nothing to do with LED or PWM. I think some kind of picture enhancement (temporal dithering, hd smoothing, desktop anti aliasing,...) which my eyes can't focus on is the root of my problems.