We have an individual that is going thru a gender change and is emitting some type of smell/odor/scent that is and has been making me ill for quite some time. I have had CAT scans, MRI's, Xray's and Blood work done. I have been to my family doctor, allergist and ENT specialist and nothing can be found that is causing my problem. When this individual wears this scent, I get an immediate headache and sinus's block. I go home on a daily basis sick. I have to share an office with this individual and we have a contained HVAC system. I have left my desk in the office only to be told by management that I will be written up for insubordination if I do not return to the office. I have been to management/EEO/HR/Safety office and my local Union. All with the exception of the union to no avail. This has been going on for 10 months and my health is getting worse. I am at my wits end and stressed to the max over this. I cannot continue to work under these conditions. I work for the federal government and was told to file for disability if I could not deal with this problem. I have over 20 witnesses to this odor/scent/smell that he/she is emitting, but I am the only one gettng sick. HELP !!!!!