[carapace]

For simple and immediate relief you can change the voice to have a silly accent or be cartoonish and/or play ridiculous music behind it. Like Henry Mancini's "Baby Elephant Walk" https://www.youtube.com/watch?v=oYu7c4Vkmp0

For long-term relief you're going to want to talk to a therapist, I recommend trying a bunch until you find someone that "clicks" for you and gets results. You have likely internalized some BS somewhere along the line, not too unusual on Earth really, nothing to worry about. But get it looked at sooner than later, eh? You should be able to localize the voice to particular place or places in your body that are tense and/or numb, where you have been "storing" tension or trauma in your musculo-skeletal system. Once you learned the internal auditory-linguistic feedback channel, your body started using it to get your attention. Sometimes a nice massage or hot bath is all that's needed.