I did not get any headaches or liss of voice, but my nose did get stuffed up, runny nose, anxiety, & irritability. I used to have bad reactions to finger nail polish and chlorine in pool water.
Cannot help you on who could test you except I would think an allergist. But I can tell you that once I started to nasal irrigate, those reactions stopped. I no longer have any problems to the above chemicals but, I do have to irrigate twice a day.