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.
Hypersomnia is a sleep disorder that causes a person to want to sleep at inappropriate times. While many people can be over tired or get sleepy in the middle of the day, hypersomnia is different. Those with this sleep disorder suffer from a debilitating tiredness despite getting a good nightâs sleep.