Is there a perscription to help you regain energy loss?

I have chronic fatigue, fibromyalgia, RA and (okay, severial other deseases). On a scale of 1-10, my energy level is maybe a 2 at it's greatest. I have tried herbs, relaxation, breathing, just about everything I can afford to take or do I have done. In the last 3 months I have been taking the newly approved drug Lyrica for the fibro. and it has helped with the pain but it has also aided in me gaining some unwanted weight. But my energy level is so low I have trouble staying awake for more than 4 hours at a time. I just want energy enough to be able to clean my home like an average house wife. And god knows I would love to be able to get my weight down some too. My health has been a major problem for 20 years and it has takin a toll on my family. They have given so much up for me I just want to be able to return some of love they have given me. Please help me if you can.