I also meant to ask what kind of engineer you were? because I have 2 engineers in my family, my brother and my niece. My niece works traveling to different places working on the inside and my brother does a lot of work on the outside. I was just wondering if this problem occured when you started your job, or before, because sometimes people get sick because of different enviroments due to being around certain chemicals and toxins,and through inhaling them. I know my brother used to get sick a lot because he works outdoors a lot, but that was my reason for asking., I hope everything works out for you God bless.