I am just so tired all day!

I sleep with a Cpac Machine ( and hate it)

I tried Provigel for many months, never helped
I take caffine pills throughout the day for when i must be awake
i tried the natural herb call Maca,,didnt work
I even tried a diet pill when trying to lose weight..still no energy
I even take 20mgrs of Prednisone a day..no energy

Has any of your doctors told you what it is about RSD that makes us SO tired?

I cant do any exercise because of herniated back discs and my entire abdomen is swollen..i cant do anything to raise my cardio. I do sit down exercise videos and lift small weights. there just has to be something to help with energy.

please tell me what you do or take
thank you
Lori