obstructive sleep apnea/hypopnea syndrome
"After years of struggling with sleep disorders I went through 2 sleep studies, a battery of tests including echo and bloodwork.  Once they find out from sleep studies I have mild obstructive sleep apnea, nocturnal eating disorder, REM resistant sleep disorder, and upper airway resistant syndrome they put me on a CPAP machine and after much pushing I finally got approved for Nuvigil because I am still tired even with CPAP.  My fatigue not only comes from sleep disorders but I also have Type 2 diabetes, Vitamin D3 Deficiency, and Depression fatigue.  Any who I started on Nuvigil like 2 days ago at 150 mg and at first it was perfect but very quickly I've become desensitized to the either the med or dose 150 wears off after 6hours."