Go to an ENT that does sensitivity testing (allergy)...and also pick up the how to allergen free your home and your life and whatever it says.

It isn't easy, but you can find out what is making you sick.

Keep a record of everything that goes into your mouth... toothpaste, breath mint, brands of food... and note any increase in symptoms afterwards (food allergies become worse at night, during sleep, inhalent allergies tend to be more immediate.)

Eliminate everything you can and begin again. Soaps, shampoos, laundry detergents etc. (I just used ALL which I never had a problem with before, and each thing I washed in it itched me. They must have changed the formula. The FTC doesn't require them to tell us that, btw. )

good wishes!