I Have Been Diagnosed With Fibromyalgia Which The Physicians Estimate

I have been diagnosed with Fibromyalgia which the physicians estimate that I have had this for well over ten years. I have seen so many specialists and they all agree with the diagnosis. I have since had symptoms of RA and was tested. That came out positive. All of these doctors have given me a physical and they all agree with the diagnosis. Now all of the sudden my mother thinks I have Lyme disease and can be tested and cured. I completely disagree. My symptoms do not agree with the article I just read. I'm now in a difficult position with my mother. What is your opinion of this whole situation? How could all these doctors be wrong and why wouldn't they have tested me for Lyme disease in the beginning? I am also concerned about the fact that I also may have Lupus per my physician. Please help!