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.
Feeling tired all the time can be a symptom of a vitamin D deficiency. Vitamin D deficiency is becoming a common problem and may affect many Americans without their knowledge. According to a 2009 report in the âArchives of Internal Medicine,â as many as 77 percent of Americans are vitamin D-deficient.