Your physician can run blood work and see if you have anemia
The test is called a CBC
or complete blood count
. Another way to easily check for anemia, and do a good deed at the same time, is to go to the local blood bank, and try to donate blood. If you have anemia, they will let you know, and if you don't have anemia, you can save a life.
Answer assisted by Holly Barth, Medical Student