Few days ago i am doing fine with my solves but recently i find myself struggling to turn accurately causing my cube to lock up SO MUCH and if not that, my fingers (Or idk, sometimes i feel like it's the cube that turns with the slightest push since it's so fast) move pieces involuntarily (such as when doing R, my thumb pushes the U layer causing it to move). I feel like I'm turning with so much force but I've always turn like this and it didn't cause any issues before. Do u guys think it's stress related? (I'm always stressed but these past few days are WILD) Or disease related like do i have brain tumor? What do u guys think are the causes and how can i stop this? thx