Hi Samantha,
Fatigue can have many different reasons. I'd first start with finding out what my vitamin levels are. Your doctor can do this with a simple blood test. Here is a link to the vitamin forum where you can find lots of info......
http://neurotalk.psychcentral.com/forum49.html
Here is the link to the Fibro & Chronic Fatigue forum as well. You might find some helpful suggestions there.........
http://neurotalk.psychcentral.com/forum12.html