please help...all my life i've battled with "clinical depression going from mild to severe and from being hospitalized and thru the years finally finding a medicine (zoloft) that keeps me half way functioning. but still, as good as it might work...i never really feel like im healthy. reading these message boards on CFS i wonder if thats part of what i have...its kinda confusing since some of the symptoms are very similar to depression. but some of the things i feel im not too sure if they come from the depression...i can go from feeling fine to withing a matter of just hours get a major migraine headache, to feeling spacey and not being able to focus, and just having lotsa weird strange physical symptoms kinda as if i was catching the flu or something...and 99% of the time i am always feeling tired...everything is a struggle for me...i use to think i was lazy but i know im not cause i DO wanna do stuff im just too tired to do them. please help...how do i know if i have CFS? what are the specific symptoms? thanks!