Yes, knowing anything is a thought, but this does not mean that there has to be a knower separate from the thought, does it?
I'm not sure I know how to answer this question. On one hand, how can a thought know anything? A thought is something that can be known, but then knowing it is yet another thought. The same goes for anything else that can be known. Seems that this "I" exists only when thoughts are there, but when my thoughts are not there, it appears that it doesn't even matter whether this body is alive or dead because anything that happens has nothing to do with "me" (as there is no me anymore). I understand that there are things happening and then the mind makes up a story that makes it seem as if I make them happen or that they are happening to me - but for this to work, there has to be an ability for something to believe this story. How can an illusion believe anything?
How is this "sense of a separate I" experienced? Can you please look at this sense-of-I in some depth.
The separateness is experienced as the ability (or frustration at the disability) to influence what is experienced by believing in the ability (or inability) to exercise "will power" to do so.
Does the body really have/own these memories, emotions and interests? Or are these again just conditioned thoughts?
It's the same cycle that I can't see a way out of - From researching the concepts we see the body contains the brain, which in turn enables these conditioned thoughts, which are "implemented" by complex neural processes, which themselves are enabled by chemical processes, which are governed by physical laws and entities which themselves are (and can only ever be) thoughts about reality (and not reality) and we are back to square one...
Can awareness and the pressure/tingling be separated?
Suppose it wasn't pressure/tingling but excruciating pain. Beyond the awareness of the pain there would be a thought of "this is bad, I don't want this, I want it solved now, I have to find a way to end it immediately, I can't stand this anymore etc." The experience/belief of a personal pain, of it happening to "me" against my will is what suffering is, and I see no way around it other than seeing there is no "me" - but this belief is a tough nut to crack.
What if we keep this knowledge but see it for what it is - not a separate entity, but simply a story of events, ideas, beliefs that has no owner... is it still personal?
I wouldn't know as I'm not there yet, but it's hard for me to comprehend an existence without me in it. I can only compare it to how existence was before I was born, or when I'm in deep sleep - both are meaningless from the perspective of a personal/dualistic existence
Does existence, being, require separation to be "real"? Why?
What states that "I am!" ?
Things have existed long before any "I" started believing it was real, so obviously reality doesn't care a bit about my personal illusion. However, this illusion has a very real "I am" part to it. I could say that this "I am" is what exists before the subject and object, before the thought that it is something else but that's just speculation on my part. I honestly have no idea what states the "I am!"