Some background, I broke out in hives when taking a sulfa drug years ago, and I always get bloated after eat sulfur veggies... but then again I get bloated after eating almost anything and sulfur veggies also happen to usually be FODMAPS which I have even more trouble tolerating. Also, I've had issues with taking epsom salt baths from what I can remember? I have some neurological symptoms associated with BH4 depletion. I'm also positive for double heterozygous MTHFR. So, I've read that a sulphur intolerance/ oxidation problem is usually a "misnomer", and that what is actually happening is that the thiols are mobilizing heavy metals, namely mercury (https://www.paleohacks.com/paleo/sulfur-intolerance-aka-poor-sulfur-oxidation-ever-heard-of-it-6702). I've had my metals tested and I'm high in mercury and very high in arsenic. I've also read a thread on this forum called cbs success where the OP talks about how a low sulphur diet and charcoal/magnesium flushes made all the difference for her. Can someone explain to me the mechanism behind this? Am I sulphur toxic? Can molybdenum deficiency cause this? Any input that might bring me to a deeper level of understanding would be greatly appreciated.