Although Hypovitaminosis D (Vitamin D Deficiency) is commonly known to cause musculoskeletal manifestations, it can also be manifested with unusual symptoms, making the diagnosis challenging, especially in adolescents without the obvious risk factor of obesity. This article presents a case report with an atypical neurological manifestation, head tingling, that illustrates how evasive the diagnosis of hypovitaminosis D can be, especially in an adolescent with low-normal weight, as it is often overlooked in non-obese individuals. This case highlights a potential direct neurologic manifestation of severe hypovitaminosis D in adolescents with normal calcium levels, expanding the clinical spectrum of vitamin D deficiency. The report summarizes the unusual presenting symptoms, the response to vitamin D supplementation, and the recommendations for pediatric clinicians with regard to the current guidelines.
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