From what I understand about conversion disorder, it is by definition a neurological disorder for which doctors cannot find a cause. The doctors relate it to stress and basically say that stress causes your brain to think there is something wrong and react a certain way, when nothing appears to be wrong.
Just because nothing shows up on various tests, does not necessarily mean that there was not an initial cause. Your brain was working correctly, and then it stopped working correctly. I believe that the brain was designed by a master creator who has an incredible design. All of a sudden you have crazy symptoms that you have never had before. Why? Because your brain all of a sudden stopped working correctly? Well why? Because of stress? OK, why now? Had you never had stress in your life before? I can easily believe that you had one type of stress that broke the proverbial camel's back, but still, why? I know stress can cause many problems, but the body is actually designed by God to handle stress, and when it doesn't, something is wrong.
Many neurological issues are caused by a toxin crossing the blood-brain barrier. That was why I suggested black mold. It's one of the worst offenders, so is mercury, and so are some heavy metals. Ladyhen said that drywall and joint compound is as well (I didn't know this, thanks!). I would assume that the doctors did not test you for whatever chemical was in drywall and joint compound, but I could be wrong. Another offender is an ingredient in a common flee bomb.
Another thing you need to know about neurological toxins is that they cause different symptoms in different people. There are over 600 Neurological diseases/issues. I am assuming there are so many because like I said earlier, no two people are alike, and people are going to respond differently to different chemical compounds. There are just SO many different factors.
So at this point what would I personally do? I would start researching how to get my body as healthy as possible. I would look into various detoxes and detoxing agents. I would start eating as healthy as a possibly could probably doing the GAPS diet.
I would go to a corrective chiropractor, one that corrects spinal subluxations. If would actually ask to see if he did corrective care with xrays, if not, don't bother. Find another one that does. If the nerves are not getting the correct messages from the brain, this is going to cause problems. A corrective chiropractor can help make sure that there is nothing hindering this process.
Last I would get my vitamin D3 levels checked. There is a wealth of information about how vitamin D helps neurological disorders. There have been so many studies about those that had N. disorders having vitamin D deficiencies. There were other studies of how vitamin D helped those with N. disorders completely reverse the disorder.
From what I understand, experts believe that vitamin D helps cells in the body communicate and communicate correctly. Without enough of it, the cells begin to cause incorrect communications especially in the brain (also in the pancreas).
Praying that you find answers soon.