Hi Rori!
I do hope that you eventually win your case!! You are right, you can't use Lyme as a diagnosis to help you get disability - at least not yet. It's not recognized as a disabling condition.
Here is a couple of links to help you figure out how to get through this. I'm sure at least some of the info is repeated, but there could be things on one site and not another that could be of help.
www.anapsid.org/cnd/disability/www.disabilitysecrets.com/social-security-disability-lyme-disease.htmlwww.lymeinfo.net/insurance.html Of course if you do a search on the internet with the search terms, "Lyme disability", you will get all kinds of links!
I hope this helps some!!