Headaches can be related to disorders of the neck, muscle tension, or prolonged strain through the upper body. In many cases, pain and tension begin around the top of your neck or base of your skull, then spread into the back of your head, temples, forehead, or behind your eyes. Headaches may be aggravated by sustained postures, neck movement, working with the head down, stress, or tension through the jaw, shoulders, and upper neck. Some people also experience associated neck pain, stiffness, dizziness, or light-headedness. Where headaches are linked to the neck, the upper cervical joints and muscles may refer pain into the head due to the close connection between the nerves of the neck and those of the head and face.
Physiotherapy for headaches begins with a thorough evidence-informed assessment to determine whether the neck, upper cervical joints, muscles, posture, or movement habits may be contributing to your problem. This includes assessing your neck movement, joint mobility, muscle tension, posture, and any aggravating positions or activities.
Treatment may involve manual therapy such as joint mobilisation, soft tissue treatment, and specific exercises to improve neck strength, flexibility, and control. Postural assessment and advice may also help reduce repeated strain on the neck and upper body. Where appropriate, physiotherapy may also include relaxation strategies and practical guidance for work, sleep, and day-to-day activities. Appropriate pillow guidance can be invaluable also.
The aim is to reduce your headache pain and muscle tension, improve movement, and help prevent the headaches from recurring.
If symptoms suggest migraine, allergy, or another medical cause, referral for medical support may be recommended.

For persistent or recurring problems, a broader approach may help.