Many of us have been in limbo in the past . MS was first mentioned to me by a neuro more than 17 years ago and I wasn't diagnosed until May 2007. I take the blame for some of that time because I chose to ignore some of the things that were happening to me. During those years I was diagnosed with fibromyalgia, 'all in your head disease', RSD, etc. etc. It turned out to be MS. Try not to dwell on it too much. They can't diagnose you until they put all the pieces together. Definitely keep a symptom journal, it really helps.