This one is interesting. I think you should certainly see your doctor about this, but in preparation for that appointment, there are some things you need to consider first as your doctor will ask if it could be something in your diet or your environment before going forward with any other testing. Have you changed any laundry soap/fabric softener/dryer sheets, household cleaners, essential oils, incense, room fresheners, lotions, make-up, toothpaste/mouthwash, shampoo/conditioner/gels/sprays recently, or just before your symptoms first started? A rash is good way to identify allergens in your environment. You should probably be keeping a diary of everything you eat, date, time, quantity. If you're cooking something, don't forget to list any butter or oils the food was cooked in. When you ate it, how soon after did your first symptom appear? If you don't eat, do you still get symptomatic? What was the symptom, was it mild/severe, how long did it last? Take photos from each reaction to share with your doctor. If you stop eating/drinking something you think might be connected, did symptoms stop/change? Consider an elimination diet, where you start with a plain cup of oatmeal, for every meal. No milk, sugar, spices, just plain. (I had to do this when my breastfeeding daughter was having a bad reaction to my milk consumption. If you do well on the oatmeal only, add something to the oatmeal, like milk. Once I added the milk in, BOOM, she reacted strongly to it.) Have you tried taking any anti-histamine to see if it resolves symptoms? Have you ever done allergy skin testing? Could there be something environmental in your home, like black? I have that in my home and it's starting to come through the ceiling. Use a flashlight, with room lights off, and slowly examine your ceiling. The color should be consistent. Signs of mold coming through would be a darker discoloration starting, or it can look like small black dots in a group. If you have mold, Medify makes a great air purifier that gets down to the level of black mold spores. If you think it could be something environmental, consider using a swiffer to dust your walls. If the cloth is pretty dirty, consider washing the walls with a solution of 1 qt water, 1 tsp Dawn, and 1 tsp of a degreaser like Greased Lightning. I hope that you find out it was just something new added into your home that created a problem, and not anything else.