Q: I am a retired federal employee and currently have health care coverage under one of the Federal Employee Health Benefits plans. I recently found out that I have multiple myeloma. I am also a Vietnam veteran, and after learning of my diagnosis, I found out that any Vietnam veteran who served on the ground in Vietnam between 1962 and 1975 and later developed certain diseases, including multiple myeloma, is presumed to have been exposed to Agent Orange herbicide and would be entitled to free health care for those diseases through the Veterans Affairs Department health care system. However, much…