The phrase "shift my position" is correct and commonly used in written English.
It means to physically or mentally move to a different location or perspective. Example: "I need to shift my position so I can see the screen better."
I would not so publicly shift my position so dramatically unless I believed this was a real emergency, an imminent threat to the futures of millions of people, and to the struggles for justice that we so desperately need.
What does it matter to me if, bending to gaze into her brilliant dark eyes, I see her looking a little to the left or right, so that I have to shift my position slightly to create the illusion that we're gazing deep into each other's eyes?
This means both in the most literal sense (I'm encouraged to shift my position if my arm is falling asleep) and a more figurative one.
I have shifted my position from a strong "no" to being on the fence in terms of independence.
I also found the screen would turn off while I was trying to use the watch just because I had shifted my position.
I sat and waited, shifting my position nervously, the beans crackling around my arse.
And so, as nonchalantly as I could (which means not at all), I shifted my position in my seat so I could see Her computer screen from the corner of my left eye.
A movement transformation would shift the guard toward the end of the clause (and add by), and another would shift my pass into the position before the verb.
I shifted my sitting position to talk to my sister-in-law.
The extra non-button space on the front is meant to alleviate that, and it does, but I had to shift the position of my fingers to get a solid surface on which to push down.
If I can use my position to shift that at all, then, as a feminist, I obviously want to".
