Raising the pressure above 5 is paramount, in my non medical advice opinion. I had the same symptoms at a pressure of 5. Raising my pressure resolved this, and provided me adequate pressure to actually sleep well! Please do this before considering my original opinion below.
Original message:
You mention using the F30 and P10 masks. Those are 2 masks I've used at length. And I, too, have struggled with either removing them during the night of having a return of apnea symptoms. I've learned that (for me) these masks don't vent enough of my exhaled air, and then my body throws a temper tantrum ("I need cleaner/fresher air to breathe!") and then I either remove the mask in my sleep, or I have a resurgence of apnea symptoms.
Finding a mask that vents enough of my exhaled air has been a journey of trial and error.
And your post got my attention because I can very much relate.