Hi and welcome,
We have a number of discussion about fatigue here in our archives and also in the Health PAges. Here is the link to the HP that talks about the types of fatigue we might face with MS-
Once you know the type of fatigue, you can then work on strategies to help with the fatigue.
While looking through our archives for information on fatigue and management I came across an old but amazingly good discussion on MS fatigue that I had not read before (it's from 2007 and I wasn't here until 2008). You might find that useful as well. I bumped it up to the first page but also have the link for you -
And finally, believe it or not one of the best ways to work on our fatigue is exercise. The brain chemicals from even a small workout do amazing things for us.