https://www.thewaltoncentre.nhs.uk/...oduction/Migraine - A Comprehensive Guide.pdf
And a headache is not always present:
....increased awareness of normal body sensation in migraine can for example mean that normal sensation is amplified to cause a feeling of tingling or soreness of the skin or even pain and tenderness in various parts of the body, including the chest, abdomen, pelvis, neck, joints or muscles.
There may be an increased awareness of normal feelings within the gut, the heart may seem to race or beat heavily or there may be feelings of dizziness (vertigo).
...Migraine starts in the brain but the way it affects the nerves in
the brain means it can lead to pain, stiffness, tenderness and aching in the neck....
....Similarly, the pain may be experienced in the face, sinuses or teeth. Some people with migraine may experience pain even outside of the head and next area, in their legs or chest or stomach.
....Autonomic symptoms are present in up to 60% of migraine patients while these symptoms may be quite mild, they may sometimes lead to confusion in diagnosis and management, leading to inappropriate and incorrect diagnosis in some patients....
Generalised autonomic disturbance:
Nausea or vomiting
Pallor
Passing a lot of urine
Diarrhoea
A fast heart rate or drop in blood pressure
Sweating or flushing
And a headache is not always present:
...Although headaches are often the most prominent feature of chronic migraine, some people experience relatively little or no discomfort.
As migraine is more often than not very treatable, it is always worth considering this diagnosis when patients have a long list of symptoms that may for example include fatigue, facial or sinus discomfort, dizziness, vertigo, blackouts, blocked ears, generalised body pains and tenderness, neck pain, tingling, numbness down one side of the face or body, irritable bowel symptoms, depression, irritability, poor memory or forgetfulness, poor sleep, twitching and/or night time restless legs symptoms.