What type of tv do you have. I get issues with some tv’s and computer monitors if the settings are not set up I get head aches. Seems for me it’s a motion sickness thing and some monitors if set up with certain settings can induce headache even if it’s not a moving picture. Seems for me it’s a combo of refresh rates anti aliasing and a few other things. It’s more common in the gaming world but can show it’s self in tv monitors