Step-by-step explanation:
It is difficult to provide a definitive diagnosis without a physical examination by a medical professional, but based on your description, it is possible that you may have a condition called vocal cord palsy or vocal fold paralysis. Vocal cord palsy occurs when one or both of the vocal cords (also known as vocal folds) do not move properly, which can cause difficulty speaking and breathing.
The fact that you experience difficulty speaking and your vocal cords do not vibrate when you turn your head to the left but not when you turn it to the right suggests that the issue may be related to the positioning of your neck or the nerves that control your vocal cords. This could be due to a number of factors, such as injury to the neck, a viral infection affecting the nerves, or a neurological condition.
It is important to have a medical professional evaluate your symptoms to determine the underlying cause and provide appropriate treatment. You may want to consult with an ear, nose, and throat (ENT) doctor or a speech-language pathologist who can perform a more detailed evaluation of your vocal cords and recommend appropriate treatment, which may include exercises or therapy to strengthen the vocal cords or surgery in more severe cases.