Fasciculation is a possible cause of the vibration that was felt. The muscle spasm or fasciculation can occur when there is some stress on a specific muscle as a consequence of overworking the muscle or utilizing it in the wrong way. This can cause the muscle to tighten and contract in an involuntary manner. This sensation can also be caused by putting pressure on a nerve in the foot.
It’s possible that this is part of your body’s natural response to stress, which involves sending hormones and blood flow to different sections of the body in preparation for either fighting or running away. If you find that your pallesthesia is occurring as a response to stress, trying to relax yourself with breathing exercises or practicing mindfulness may help ease some of the symptoms.