If yes, what did doctor say? I think if doctors are convinced, even if they do not have the explanation, they reach out to other doctors and initiate research.
If anyone visiting doctor soon, please tell them about all things so that they can provide guidance.
Try explaining this way: Hello doctor, I have a really strange condition. People around me(including me) have watery eyes, cough, sneezing, and allergy like symptoms. I think some kind of allergic chemical is being expelled by my body. I do not think it is in my mind, because I have analyzed it multiple times, and I confirm that it is real. Is there anyway I can to testing of urine, stool, saliva, etc. to test for any abnormal chemicals?
Good Luck.