Thing is, the symptoms is what the diagnosis is based on.
A doctor would diagnose you based on your symptoms.  You said you were tired.  What else is wrong?
I do not have much energy Are you having trouble carrying out normal daily routines?  Could be chronic fatigue syndrome. I am thinking so, maybe i need to see a doctor on this It isn't something that can be cured, but chronic fatigue syndrome can be managed. How can i manage it There are two treatments, one is called graded exercise therapy, the other is cognitive behavioral therapy. i will try and do both. But what is the cause of this I'm not sure but there have been proposals like it being biological, a psychological, genetics or infectious mechanism. I think mine is psychologically based.
Diagnosis is based on a person's symptoms.