there are a couple of problems that I have with your post.
The first one is the source of the information .. and you think they know something? (*(&^#$#%^_#% Burocrats!!!)
Second is the operative phrase "exposure to very large amounts " totally unspecified amount. This is to vague to be of any value to anyone, especically some one in the medical field. To much oxygen ot to much water will kill you too...
What the heck is "an intuitive medical healer." is that some kind of psychic? I believe in alternative medicine but unless it was some one with the credentials and success of Egar Casey I would take it with a grain of salt. What you relay was said sounds like a cold psychic reading that could apply to anyone with any kind of ailiment.