Hi Ninjaheidi ~ Mold spores are invisible but for those w/allergy to mold this can be absolutely devastating. Symptoms range from terrible headaches to allergic rhinitis [nose running], asthma &...
First the obvious ~ Have you changed anything at all? Shampoo? Hand Soap? Clothing detergent? If the itching keeps coming back diagnosing the issue as "stress" is probably too broad. Keep a notebook...
TBH most doctors don't understand allergies at all. I had severe allergies as a child. Did immunotherapy [shots] after batteries of tests concluded I was allergic to nearly everything under the sun....
Keep getting tests until the mystery is solved. Have you been tested for mold? This can be very toxic and not visible at all in your environment....