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.
Physical Causes. The most obvious reason for being tired and sleepy is lack of sleep. According to MayoClinic.com, the average adult needs between seven and eight hours of sleep every day. If you're sleeping less than that, adjusting your sleeping schedule might provide some relief.
I hope this information is of some help to you. Tiredness is caused because the body is trying to heal. It is making adjustment (homeostatis) to try to do the functions the liver once did. The tiredness can be sudden and unforgiving. There is no choice but for the body to sleep.