Herb

Hey, I'm service connected for IBS, chronic migraines, anxiety, reynaud's syndrome, and lumbosacral and cervical strain. Upon coming home from Afghanistan and while in country was treated for insomnia and many of my symptoms above progressed in the first year after returning in 2011. I was treated and diagnosed while still on AD. My rheumatologist an AD Col diagnosed me with fibromyalgia end of 2016. I filed a VA claim and told my fibromyalgia was not service related. Is it worth appealing and if granted could the VA take away my other conditions saying they are just part of my fibromyalgia diagnose? My rheumatologist wrote a letter stating he felt my fibromyalgia was service related. Any guidance on how to proceed or do nothing? Any help would be most appreciated. Regards Herb