So, let me clarify this. You're saying that after meditation you feel stiff and unable to move, but you feel tingling in your limbs? And, you've attempted to see them with the perspective of a third eye or sixth sense and all you see is white?
From my point of view, it sounds more as though you were still for so long that you're going numb, or that your limbs are beginning to fall asleep. You might possibly have poor or slower blood circulation - exercising a little before meditating could easily solve this problem. A handful of jumping jacks, or climbing stairs a few times.
As for the white, if you're seeing white blank out your whole line of vision - it's possible that your eyes are just blanking out for a moment. When one stands up too fast, moves too suddenly, or tries to concentrate too hard when they were out of motion for an extended period of time they often experience something where their eyes stop working for a small second as blood flows too quickly through the part of the brain that controls your eyes. Something similar would be the vertigo feeling you get when standing up too fast.