So, what is proof? What is common sense? (to you, not wikipedia or a dictionary)
I see lack of definitions in your argument.
The problem is that when you step back, you realize that there truly is no valid proof to be had.
You might claim evidence as proof, but evidence is always up to interpretation.
You might claim witnesses as proof, but those witnesses might be lying/not exist/be wrong.
And just because no evidence exists for something doesn't mean it didn't happen.
Your claim, that everything happens to everyone, is unstable if those people are all a figment of your imagination (conscious or unconscious).
And unfortunately people do die without anyone noticing. Granted, it's less common in our current era, but people do disappear.
Unfortunately, there can't be any evidence of this phenomenon, (since if there was evidence, someone would have noticed).
Finally, reality is illogical, everyone knows that.
And your vision is most likely slightly worse than someone else's vision, and thus, slightly blurrier. Then is your perception of reality less credible than theirs?
Creative thinking. You should try it sometime.