For several years, I've been going through periods of severe fatigue....to the point where I can't even take a shower without having to sit down before I'm finished. It can last up to three weeks at a time, then almost sudden recovery. I do have pain, but who doesn't at age 43? The pain is minimal most times. I have had blood tests running out the ears and all have been negative. I have also even been tested for MS. With all the blood tests coming back negative, the doctors finally said "I guess it's CFS",even when there was no pain on the pinpoint areas. My Neurologist perscribed Provigil. Has anyone had relief from this? I've also tried Adderal, which made me too nervouse and shakey, so I discontinued that. Please help me understand what is going on? I have spent a fortune on tests and hesitate to have any more done.