Hi Zac, Welcome
I often had a similar mindset in that I never trusted mirrors. This became an issue when, say, I wanted to execute a "U"-turn with my car I wouldn't trust my rear view mirror and have to directly look without the aid of my mirror before I drove around.
But as time went on I knew my mistrust was illogical. Mirrors don't lie, they only fail when a car outside the mirrors effective view threatens the safety of the action of the U-turn. eg another car doing a U-turn in close proximity.
But the mirror still doesn't lie, it does what it does within the dimensions of its size. So how did I accomplish moving on with this? I slowly kept placing trust in my mirrors. And after about 5 years I was 100% trusting of them. This is a small example of your much wider issue however but it should allow you to accept that your mind isn't working as a sole - one person experience. It might be very common.
Finally, being or rather thinking realistically is a common challenge for stress and anxiety sufferers. When their minds run rampant with all sorts of possibilities near impossible to happen, this leads to anxiety. This happened to me when my anxiety peaked in 1987 from a workplace incident. A panic attack ensued etc. My therapist had quite a time asking me if I am being realistic. Thinking more realistically meant my imagination was being shut down which lessened my anxiety. The roller coater slowed down eventually to a stop.
Either way I'd suggest a trip to your GP and subsequent professional care thereafter.
Good luck with it.
Tony WK
