Hi Debbie,
I don't know too much about Hemachromatosis, but make sure that it's not something that can mimc the symptoms of Fibro. (As your doc didn't even want to test you, one has to wonder what he knows about it!)
What kind of meds are you on so far? Since there is no cure for FMS, the best many doctors can do is try and control the symptoms.
What they usually do for fatigue is prescribe something to help you get restorative sleep (such as Elavil which also seems to cut pain perception for most people, but other anti-depressants work as well). Next is something for the pain, depending on severity. I have taken Ultram for pain, and it also helps me with energy. (So I only take it in the morning, because I can't sleep if I take it too late.) A lot of people with Fibro have different types of pain, so pain meds can vary widely. I also take Soma, a muscle relaxer, at night to help me get to sleep (because the knots in my back wouldn't let me otherwise.) Sometimes ant-inflammatories can help, but you should be careful with them since many can hurt your stomach, which may be susceptible to IBS if you have Fibro.
Other things that can be helpful include Epsom salt baths, heat or cold packs, and arthritis creams and patches.
Stretching can be very helpful, if you can manage it, even for a few minutes a day. I know any exercise sounds impossible, but keep in mind that your muscles are weakening every day you stay inactive, and this only causes more problems and pain. (Take it from a 26 year old who had to walk with a cane at one time! Until I discovered that it wasn't my knees, but the muscles around them weakening that was causing the pain and unsteadiness!)
A new doctor who can actually help you and knows about treating Fibro is a must for you, and the one you have now doesn't sound like he's helping!
Also, as other people have mentioned, a low-carb diet can be helpful with energy. (I am currently experimenting with this).
A book I am reading right now that seems really helpful is called "Fibromyalgia: The First Year (A Patient Expert Walks you Through Everything You need to Learn and Do.) Although it's not my first year, I'm finding it very helpful, supportive, and thorough, with many useful sections, including coping, and a medication glossary.
Here is a link to a low-carb diet being given by my doctor for Fibromyalgia:
HG Diet
It's technically for Hypoglycemics, but it seems to help with energy in general.
The site also has good info on FMS, and includes a protocol that is thought to reverse FMS. (It's not easy, but I'm giving it a try myself!)
Hope to have been of some help, and hang in there!
Jen