I feel better than I have in years. But sometimes, the ghost is back and I’m not sure why. Was it something I ate? Something I drank? The fluoride in the water? The metal at the bottom of my last remaining non-stick pan? Hair dye? Sugar? The new shower curtain off-gassing? Insecticides in the grass? Stress? The Pill I took for 10 years? Radon? Black mold? EMR’s from my cell phone? My 20-year old root canal? Too much working out? Too little working out?