A patient-specific, comprehensive clinical examination was performed in each patient. In addition, a detailed patient history was obtained from each patient. To diagnose CD, Head- Neck Differentiation Test (HNDT) and Cervical Torsion Test (CTT) were performed using Frenzel lenses. Patients that were found to be positive in either of these two tests after the exclusion of other peripheral and central causes were diagnosed with cervical Dizziness.

Priorities of the treatment included care and interventions to avoid inappropriate neck positions and to provide a regular exercise program for neck muscles and ergonomics training (ergonomic arrangements for desk setup, reading position, computer and mobile phone use, handcrafts, television watching, and pillow height). Of note, patients were advised to avoid cold exposure, particularly in the neck area (air-conditioned environments, wet hair, and holding the hair dryer too close to the scalp). Patients that did not show improvement after training and regular exercise were initiated on medical treatment after the second week and were given myorelaxant gel and oral tablets (diclofenac sodium) for the neck area.

Neck Pain Visual Analogue Scale (Neck-VAS) consists of an 11-point numerical rating scale, in which 0 indicates "no pain at all" and 10 indicates "worst possible pain."

Disability Index (NDI), developed as a modification of the Oswestry Disability Index, was used to assess neck pain-specific disability. NDI consists of 10 items including (i) pain, (ii) personal care, (iii) lifting, (iv) reading, (v) headaches, (vi) concentration, (vii) work, (viii) driving, (ix) sleeping, and (x) recreation. Each item is rated on a 6-point Likert scale (0= no disability, 5= total disability) and the scoring intervals for interpretation include 0-4 (no limitation), 5-14 (mild limitation), 15-24 (moderate limitation), 25-34 (severe limitation), and above 34 (completely limited).

Vertigo Dizziness Imbalance Symptom Scale (VDI-SS) is used to assess head imbalance and the severity and frequency of dizziness symptoms. The scale consists of 14 items scored between 0 and 5. Vertigo Dizziness Imbalance Quality of Life Scale (VDI- QOLS) consists of 22 items scored between 0 and 5 and the severity of the symptoms is evaluated based on the total score.