My bad. I was misdiagnosed with MDD at age 19, right after a time when I had gone through a few manic episodes and lost considerable weight in part due to constantly self-medicating so to speak. Later when I was diagnosed with Bipolar Disorder Type I, I lived with that for many years, and still do. This latest MRI by a neurologist has raised suspicions that my mood disorder may indeed be caused by the increased intracranial pressure due to restricted cerebral spinal fluid flow is a common symptom of Chiari Type I and Cerebellum Tonsillar Ectopia. I have some concentration and focus problems. Sorry I did not include this information earlier. The one thing that does excite me is that perhaps there is a surgery that may alleviate or eliminate the depression, and I wonder if it could actually eliminate the bipolar disorder after all these years of suffering. I am probably deluding myself, but I need hopre right now.

Also, thanks for the links!