Deodorant Spray in Classroom: Understanding Headache Causes

Question
Hello, yes I had a question about an incident that happened today, well I teach the 9th grade..and today a student found it funny to spray a whole can of deodorant throughout the classroom..an average sized room. About 5 minutes later I started to develope a headache. What could have caused this? Like what happened within my body to cause myself a headache? Are you aware if mentally I could have caused myself to have a headache, like anticipating it I could have gotten one..because once I found out he had done this, right then I started thinking.."oh no, I'll breathe in the inhalant which could do me harm.." So what do you think? Will the headache possibly caused by the spray do me any harm?

Thanks-Danah

Answer
This could have been an allergic reaction to the ingredients in the deoderant or the ingredients in the propellant in the can..... it won't do serious harm to breathe it in that fashion, it will just be annoying with the migraine like reaction you got from the chemicals....... I would expel the kid, just on principal....