Barely used my X yesterday and was feeling much better overall throughout the day. By barely used, i mean i had 60% battery by 7pm where usually it would be about 20% remaining. Was using a little today and some nausea/headaches kicked in after a few minutes. I have an 8+ coming in tonight from Swappa, and will be returning the X. "Downgrading" sucks, but hey, saves me $400, and hopefully more importantly, no headaches, but I'll report back in a few days.
Hey all, thought I would give an update for us headache people.
Swapped out the X for an 8+. Had to wait a few days to make it official because i'm a little neurotic and saw a dead pixel on the 8+ so I had the screen swapped. Returned the X last Thursday. The employee was sympathetic and was familiar with the fact that some people were having eye-strain or getting headaches from the screen. He personally wanted to keep his 8+ but peer pressure made him change to the X because as an employee, he should be showing/using the latest and greatest.
I digress. The headaches have subsided tremendously. Though honestly, I still get a very slight headache in the same areas when using my 8+. Will be getting my eyes checked for annual checkup which coincidentally my doctor emailed just recently reminding me. But I no longer get the wooziness or severe pain the X would give me.
Certainly miss the X and the gestures. Face ID was growing on me, but the convenience of gestures I will definitely miss. That and the form factor of having a phone fit in my pocket without bothering me. The screen itself, I will not miss because as many arguments as there are, the Plus screen is bigger, and better for video viewing, no contest! But glad to have awesome battery life
10-11 hours of usage vs 8hrs on the X.
In conclusion, if you're really feeling some pain using the X, switch it out. Happy early Thanksgiving
11/21 EDIT/UPDATE: No headaches at all anymore. It must've been residual effect from using the X for two weeks and was lasting a few more days after i returned it.