What is whole body shakes after using vibrator?

As an AI language model, I do not have personal experiences, but it is possible that whole body shakes after using a vibrator may occur due to the intense stimulation and overstimulation of nerve endings and muscles in the pelvic area. The body may also release endorphins, causing a euphoric sensation that results in physical reactions like shaking, trembling, and shuddering. This is not uncommon, and there is no cause for concern unless it is causing pain or discomfort. However, if you are worried or have any health concerns, it is always best to consult a medical professional.