By Mayo Clinic Staff. An X-ray is a quick, painless test that produces images of the structures inside your body â particularly your bones. X-ray beams pass through your body, and they are absorbed in different amounts depending on the density of the material they pass through.
Feeling sleepy and tired all the time can be a sign of fatigue. Tiredness and fatigue can manifest in a number of ways. According to eMedicineHealth, fatigue can cause weakness, dizziness, tiredness, shortness of breath and even palpitations.
Low blood and platelet counts | Cancer Care Program. Low Red Blood Cell Count. A decreased number of red blood cells (anemia) can make you feel tired, weak, chilly, dizzy or short of breath. Here are some things you can do to help yourself feel better. 1  Get plenty of rest, conserve your energy. 2  Alternate rest periods with periods of activity.