Feeling sick after performing a Kerasilk? (Goldwell’s keratin equivalent)

I’m an apprentice at a salon and we typically get the smoothing treatment clients. I apply VERY little product to the hair (if it looks wet it’s too much) and use ventilation nearby. It gets extremely smoky and I’ve started noticing that for multiple hours after I get a headache and a sore throat. Does anyone else experience this? Does this mean I might have a sensitivity to the treatment? Thanks in advance ❤️