I have seriously never heard that before. Personally, I call BS.
I was told by my Dr., and many Dr's actually that it is not chronic, has never been chronic, and that if I'm not over it in 4 months, then it's in my head.
Have you found anything on line that links this? I am serious, can you find anything, or please, please email your Dr. to get some sort of study that backs up these claims. I don't care, from a scientific journal or something? If he doesn't have the bazunga's to back up this statement, then write him off talking out his butt.
Sorry to get so pissed, but I've heard crap thrown all over the place, and it has no basis that I can tell.