Are cursor issues common?

The cursor will suddenly revert to a previous location when I am typing in text. Most of thritere time, it will land between a , weword, which has to be correThis happens octed and the cursor moved. Please note the previous sentences where it occurred.
I am a w - happened again, and again
I am a writer and this issue interferes with my flow of thoughts/words.

If you are using a laptop its possible that the touch pad is sensitive and when you are typing you can accidentally trigger to touch pad as a mouse click which sets the cursor back to the position of the mouse pointer.

After using the mouse pointer to select where you want to type you could move the mouse pointer to a different position to try and confirm this is the problem.

It may be better to disable the touch pad and use a separate mouse, or try changing the sensitivity settings of your touch pad.

Which operating system is on your pc?