What are the symptoms?
Some people with anaemia don't have any symptoms for months. When symptoms do appear, common ones include lethargy, weakness, dizzy spells and feeling faint.
As the anaemia becomes more severe, shortness of breath, palpitations, headaches, sore mouth and gums, and brittle nails may cause problems. People
may look pale and find that others around them notice they're looking peaky.
What causes it?
Iron is needed to make haemoglobin. A shortage of iron is the most common cause of anaemia in the UK, known as iron-deficiency anaemia. This may be due to blood loss, either sudden - when a stomach ulcer bursts, for example - or over time, such as when a woman has heavy periods. A lack of iron may also be due to a dietary deficiency.
Pregnancy is a time when the body may become lacking in iron such that anaemia develops.
As well as iron, vitamins B12 and folic acid are also needed to make properly functioning red blood cells.
Red blood cells are made in bone marrow, so if this is damaged and can't function properly a shortage of good red blood cells results. This is the case in a rare form of anaemia called aplastic anaemia, and with leukaemia.
In some conditions, red blood cells mature and are destroyed by the body too quickly. This type of anaemia is called haemolytic anaemia and is often caused by an inherited condition, such as sickle cell anaemia.
People with chronic diseases, such as cancer, inflammatory bowel disease, kidney failure and rheumatoid arthritis, may also suffer with anaemia.
Just a bit of info for you Adele 
