I have been on CPAP for 6 months now and haven’t found it has had any effect on my fatigue, headaches and brain fog. My sleep doctor has suggested I take a stimulant (such as modafinil). Has anyone done this? I am generally adverse to taking drugs even for headaches I try to just tough it out. So I am wondering how safe this is, if there are side effects or hearing from anyone who has tried it.