I too have had internal vibrations but my lyme disease test came back negative.
Over three years of this and seeing every specialist under the Sun and a million different tests too and last week my new Arrhythmia doctor told me my symptoms sound exactly like Vagus Nerve damage and problems with my Autonomic Nervous System. Vagus nerve malfunctioning falls under the Dysautonomia umbrella of symptoms affecting the Autonomic Nervous System.

The malfunctioning of your Vagus nerve can negatively affect every part of your body from brain, breathing, BP, pulse, bowels, vision and sensory issues