Since your neck pain and headache have not improved after two weeks of taking Myospaz Forte (chlorzoxazone and paracetamol) and a D-Sol sachet (cholecalciferol/vitamin D3), it is important to seek a professional medical evaluation. Ongoing symptoms can sometimes stem from muscle tension, poor posture, or nerve irritation that requires targeted therapy rather than over-the-counter relief. I highly recommend consulting a doctor or a physical therapist. They can safely evaluate your neck and guide you toward effective recovery options, such as gentle exercises or physical therapy.