Having been through Zoloft withdrawal hell, I would actually suggest not trying anti-depressants unless it's a last resort. There are plenty of things which can be done with counseling, energy work such as EFT, and nutrition. As far as the unmylineated nerves, while avoidance is a good first line defense, it's supposed to be possible to remylineate nerves by following the Yasko methylation protocol. This same protocol should also help with MCS, depression, anxiety, ME/CFS, autism and any of the myriad other problems associated with poor methylation. The protocol includes high dose B-12, which was also mentioned for the neuropathy healing. The thing with methylation caused diseases, is that it requires poor genetics AND certain environmental conditions to cause disease. So like Kina was saying, you may have a house full of people - 3 are fine, and one is sick. Same exposures, different genetics, so different abilities to handle the environment Fortunately, it's possible to both practice avoidance and to supplement to bypass the poor genetics. A good test of Wifi's theory would be to go to another city area for an extended period of time, and see if he/she feels better there. There might be some problem with his/her house, such as offgassing formaldehyde, toxic mold, etc. that he/she is not aware of.