Inbox: Are there treatments that work? #HavanaSyndrome

Note: We received the note below from a Foreign Service employee who asked not to be identified. The sender gave us permission to publish this note as long as we remove potential identifying information related to specific posts and dates. We are wondering how many more out there similarly had to deal with a non-responsive  Bureau of Medical Services whose mission is “to promote and safeguard the health and well-being of America’s diplomatic community.” How many are in limbo about their condition? How many never heard from anyone about what the next steps should be?
I brought up my symptoms to the Health Unit (HU) where I was posted, and asked to receive an assessment for those symptoms even though my “attack” did not happen within the time frame specified in the Management Notice that went out via all HUs around the world. I was given the assessment, and several of my symptoms were identified as being similar to the Havana syndrome symptoms that began after my 26 months in Post Z (2008 – 2010): sudden onset of chronic insomnia, loss of smell, difficulty concentrating, and tinnitus/loss of hearing. The results of my assessment were sent to State/MED over a year ago, and I requested the HU at Post to indicate I would like a follow up. Since then I have had no communications from MED on this, despite having sent emails to various different persons in MED asking what the next steps were.  
I continue to have these symptoms. I was medevac’d from one post whose HU thought it was PTSD from Baghdad; I tried to explain I had been taking OTC sleep aids since 2009 in Post Z and that slowly but surely their efficacy had diminished. I thought I had just spontaneously developed the condition because of stress or pollution in Country Z. Unfortunately, the various symptoms have had a significant quality of life impact, both professionally and personally, and at this point I am very frustrated with State and MED for the lack of follow up. At the very least I would like to have additional assessments to see if my brain shows the patterns that our colleagues in Moscow, Havana, and Guangzhou also exhibit. I would also like to have available to me whatever resources are available from State to help work through some of these symptoms. Are there treatments that work? It would be great to get some relief.