Migraines are a severe form of headache, usually accompanied by other symptoms. These are often related to vision although may also include other symptoms such as nausea, dizziness or pins and needles.
A migraine is a severe headache. It can be classified as with or without 'Aura'. Aura is one or more other symptoms which usually occur before the migraine really sets in. Those who suffer regularly with migraines learn to see this as a warning signal.
There are commonly seen to be 5 stages of a migraine, although not everyone will go through all of them:
- Prodromal stage
The 'pre-headache' stage which may demonstrate symptoms such as mood swings, tiredness and loss of appetite. This may start a few hours or several days before the migraine appears.
Many people experience an 'aura' just before the headache appears. It is often visual, for example flashing lights or floaters in the vision. Other signs such as nausea or dizziness may be present.
- Headache stage
Usually this is a throbbing pain on one side of the head. Light sensitivity and a dislike of loud noises are common. Often the patient just wants to lie in a dark room. This may last anywhere from 4-72 hours.
- Resolution stage
The symptoms will usually fade away. Sleep often helps.
- Postdromal stage
Feelings of tiredness or weakness after the headache has subsided.
Migraines are thought to be caused by a change of the level of the hormone Serrotonin. Low levels of Serotonin cause a contriction of the blood vessels in the brain which may cause the 'aura'. They then expand again, causing a rush of blood to the brain and the resultant headache.
Due to the connection with hormones, women often experience migraines, before, suring or just after their monthly period.
Many other factors have been identifies as 'triggers' for hormones. These include stress and emotional factors, tiredness, muscle tension, menopause, dehydration, hunger, caffeine and alcohol. Certain medications are also linked with migraines.
Treatment of migraines
There is no cure for migraines, although many forms of treatment have been shown to either ease them when they arrive, or reduce their frequency.
- Painkillers such as paracetamol can be used to ease a headache.
- If these are not effective, your Doctor may prescribe stronger painkillers.
- Some people find that anti-inflammatory medications are more effective.
- Anti-nausea medications are available if you suffer with feelings of sickness.
- Avoid known triggers.
Regular migraines or those which are becoming more frequent should also be investigated by your Doctor. Further tests such as blood tests or even CT or MRI scans may be requested to check for other conditions.
For hormonal migraines, treatments such as oestrogen patches and contraceptive pills can be effective in balancing the hormones.