I am tired all the time. i have no energy and feel sleepy allthe time. i have no appetite and suffer from migraine headaches. what should i do?

See a doctor: There are many possible causes. See a doctor for evaluation including appropriate lab work.

Hundereds of reasons: At age of 50 we worry about a lot of things. My advice is to see a doctor soon to give you a complete evaluation, and based on your detail history order different tests.I don't think anyone will be able to pinpoint your problem until they examine and listen to you.

Talk with your Dr: These are general symptoms which may be caused by an internal disease process. It can also be caused by psychological factors such as depression. The possibilities are many. See your doctor for proper evaluation and treatment.