You miss the point that the thoughts themselves are not physical. The thoughts generated from your brain used to communicate with me in your post have no physical characteristics.
Let me put it this way. Is 'pressure' physical? No atom has pressure. It is only when collections of atoms interact that we can say a system has pressure.
In the same way, no neuron thinks. But thinking is what collections of neutrons do. So, yes, thoughts *do* have physical characteristics: they are located in the brain, they are described by certain physical processes in networks of neurons in the brain.
In communication, I take the neural representation of a thought, convert it into, say sounds waves that are picked up by your ears and sent to your brain to be processed. if the communication is successful, the thought in your brain is similar to that in mine.
Are you asking me to believe that OBEs have been researched and the findings replicated demonstrating that a lack of oxygen accounts for the phenomena? Frankly, this claim sounds like baloney. Most OBEs happen when people are sleeping. There's no stress.
What do we know of physics that is consistent (agreed upon by physicists)? That's a rhetorical question.
I know it is rhetorical, but here are a few: conservation of energy, localization of causes, signals are physical processes, etc.