My MacBook Pro desktop is moving around on its own

I don't think I was clear on what is happening. The next time it happens, I will try to record it in some way and upload it here if possible. It's not a trackpad problem. And just to provide additional information, I'm quite savvy with technology. If it was an obvious problem like a trackpad issue, I would have sniffed that out. The problem is that my entire desktop expands on its own. I hesitate to call it a zoom in because it is more like the entire desktop simply expands and it moves around. We are not talking about a window or an app that is moving around. It is my entire desktop that becomes unstable. As I said, I can take my cursor to the far left until I'm over far enough to get to the menu bar information and from there, I can pull down the Apple menu and click on restart and the computer will correct itself upon restarting. Maybe I'm just repeating myself, but I think the best way to describe it is that my desktop becomes expanded and unstable, moving around. Thank you for your efforts at helping and I hope my explanation helps get me further assistance.

Yeah, I think what I should have said from the beginning and kept this more simple is that what is happening is not a setting that needs to be changed. What is happening is clearly some type of glitch. There is something wrong here. I have seen other people post about their experiences similar to what I'm experiencing, and I hope some will come here and share how they handled it.

On a separate note, why is it that I cannot post the word "a. m." here without it being starred out as if I'm using a profanity. I'm having to use the contraction "I'm" instead of "I **" because this website will not let me post the two-letter word that starts with an "a" and ends with an "m." How ridiculous.

No. That is not it. But, thank you.