Some people can take supplements if they have a deficiency. The NHS says that general symptoms of anemia can include extreme tiredness, shortness of breath, feeling faint and headaches.
You may also notice that you have pale skin, a noticeable heartbeat, hear sounds that come from inside the body, rather than from an external source, and also notice a loss of appetite and weight loss.
If you have anemia caused by a vitamin B12 deficiency, you may have other symptoms that affect your behavior.
The NHS says you may notice irritability, depression, changes in the way you think, feel and behave, and a decline in your mental abilities such as memory, understanding and judgement.
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