My problems started about 8 years ago with worsening reflux that led to tachycardia and very strange blood pressure problems. I was eventually diagnosed with dysautonomia. My reflux triggered a severe vagal nerve reaction, heart arrhythmias and sluggish digestion.
I subsequently was given a hair sample test that showed deranged mineral transport and suspected mercury toxicity from eye drops taken during the 1970s. Apparently a mercury compound was used as a preservative. How much this may have contributed to my dysautonomia I can't be sure but following treatment with frequent, low dose chelation with DMSA and ALA many of my symptoms improved. Magnesium malate has also been helpful in calming my autonomic nervous system.