You probably need to re-calibrate and adjust your deadband settings a bit. The "do not move.." message indicates that the software is detecting very frequent movement of your stick (it has limits on that). If you are not moving your stick in that fashion, it might just be that the center area on your stick is not really steady and the system is simply picking up accidental, or very minor. movement and limiting you as a result. A little more deadband tends to take that away and you shouldn't get that message unless you are really yanking your stick all over the place (which is what the code was meant to address).
If you are spinning when coming out of high G maneuvers, I'm thinking you are pulling too hard and getting departure from the flight envelope. That is normal, you can't typically use all of your control input or you would depart from controlled flight (you over control the aircraft). Listen for the stall horn (make sure you have the volume turned up enough to hear it) and use that as your guide. If you hear it start to "buzz" then you know you are starting to push the limits of what your aircraft is capable of.
