Intolerance or allergy to something else around you is another posibility.
What if you react to your :
- laundry detergent ?
- toothpaste ?
- soaps and shampoos ?
- shaving cosmetics ?
- other cosmetics
- pollen
- cat dander
- dog dander
- cookware
- dishwashing detergent
- water in your home
- wallpaint ?
- something else in your house
- pesticides used in your house before you moved in ?
- building materials