ibromyalgia
"Had fibromyalgia due to chronic sleep deprivation which caused severe swelling in my hands giving me carpel tunnel pain every night also had swollen knees and severe stiffness. After months of trying alternative therapies with no improvement I finally gave in and started taking 20mg amitriptyline. Within 3 days this medicine changed my life and I felt like a different person.  Went up to 50mg but now back to 25mg and only about 75% of the time. If your health problems are caused by lack of phase four sleep, give this medicine a try."