I have just been diagnosed with cfs the last few months. I have suffered with it for 15 years now and it's just horrible. The best thing to do is go to your doctor and have a blood test to see if you firstly have it. The test will show if you have any active viruses present and will then require you to have another blood test 7-10 days later so that you can pinpoint the exact virus.
I am suffering with three different viruses at the moment and with 4 kids to look after it is no fun.
Their is nothing that the doctors can give you to "fix" cfs but their are lots of different natural remedies that you can take.
Go and get the tests done and then come back and if you are positive for cfs then I will help you if I can with some advice on the natural medicines that can help.