Mu puminologist decided, after multiple tests from other respected physicians, that my issue with central sleep apnea and day long fatigue is probably central sleep apnea (120 of methadone daily). After a few weeks of mastering the mask, Sleep patterns are much better, and I feel like I SHOULD be feeling better, but the basic :symptoms persist: read-sleep-read-sleep-rad-sleep. Get up in mornin/ feelin ok. eat good breakfast, read paper and start sinking back towards bed. cup of coffee finishes me off. blood pressure 126/90. I just added welbutrin and do feel better. but my symptoms and behaviors are essentially the same. I also have atrial fib. I m sleeping better most night under the mask. I recently added 150mg Welbutrin and 25mg of madafinil 3-4 times daily as needed. That s when the shakes added.I am 75 years old and have always been very active, walking 3-4 miles most days and lotta moving. The sudden aging or sudden fatique syndrome) hit me out of the blue. Middle of one pm I suddenly was habng a problem climbing one flight of stairs. appreciatie any tips, procedures, etc. you can suggest. thank you, paul cummins marietta, ga.