Thanks for sharing and including what your symptoms are.
(I dont mean to ask too much personal question but it may help with better understanding)
Can I ask if you wore perscription glasses before / during the patching? Do you have astigmatism? Do you suffer from migraine?
Did you close your dominant eye or just leave it open with the patch / paper blocking the lense on the glases?
You patched and used a machine that was 'bad' got pain symptoms but persisted with one eye use each day? Did you start few minutes then come back days later or just push through pain?
Did you have any machine that was 'good' but certain software / application use on that machine would cause your symptoms to get worse?
Otherwise your symptoms sound very similar to mine, I get pressure pain headache that can last days on screens / devices that are 'bad'. I have tried patching but with one eye my glasses do not make a clear picture so it is difficult.
I do have some 'good' machines that when running software (some games) it is bad. Other screens / machines everything is always bad due to graphics card issues.