Oh my! So sorry to hear this! Also sorry I don't have a good answer.

I'm worried about too much screen time myself because I know it can cause nausea, especially staring down at a tablet or phone. :/ But here I am, reading and posting and spending even more time online. Will I ever learn?? Well, I hope I learn before I do permanent damage. But I'm also addicted and kinda need the social support. Sigh!