This is a clear case of vata humor vitiation as per ayurveda principles. Vata is known to cause darkness - be in skin, menses in women, dryness, chills, dizziness, light headedness, pain etc Modernally manifested NEURALGIA, other pains. Herbs are the only sustainable and safe method to come out of chaos without toxic effects of modern drugs. Withania somnifera, Asparagus, Brahmi, Jatamansi etc are few examples which are included in treatment. It s slow in effect but uproots the problem gradually. In my clinical experience of three decades, many patients happily switched to herbal after initial trials. Herbs are available commonly in India in raw form or formulated ones or you can get globally in capsule forms too. If you need my services, pl write direct question. You may exercise option to meet any other Ayurveda specialist too. Choice is yours.