Apprehension?

Now...I already know that I am crazy. I know that there is something mentally wrong with me. If no one had anything wrong with them...everyone would be normal, or perfect. What's the fun in that?

Anyways- I have been experiencing these weird "sightings" lately. Very weird. I haven't been able to chalk it up to any one reason just yet...but I'm still kind of off about what to link it to. 

While driving...I see things that aren't there...or that are there...but in different forms. For instance- a white box truck driving in front of me, I saw it as a white box flipping towards me...came to realize a few seconds later...it was only a white truck driving in front of me. For a moment there- I actually thought this huge white box was rolling towards me. My thoughts for reaction kicked in before my vision clarified what it was seeing. 

Again, (while driving)...I am driving down a back road, surrounded by woods. The tree line up ahead, going around a curve...I thought was the road. My steering turned towards the tree line, not the road. Luckily- it only took about three seconds to correct my judgement of sight...but what could have happened there? 

Lastly- a few mornings ago...I am driving down the road...a blue car is driving in front of me. I look down to grab my drink...and when I looked up- the blue car was speeding towards me...in my lane. I braked really hard, really fast. This only made me look like an ass in front of the cars behind me...because the blue car was still driving like normal in front of me. 

I have read a few books recently over the past couple weeks on the subject of- the brain, and in which way it works. Perceptions, and how they are created through different brain signals. So...maybe my mind is playing tricks on me. Two of these three incidents, I was wearing my prescribed glasses...so I know it wasn't an error in eyesight going on me...or maybe it was?