I have a chemical phobia and am often worried chemicals could cause brain damage or cancer or something. An example of this is my roommate just sprayed Ozium sanitizer spray which is Triethylene Glycol and Propylene Glycol and some other chemicals (isopropanol) around 30 minutes before I came in the room and I noticed the room smelled really strongly and I had a mild irritation in my throat/eyes. I left the building after a couple minutes because the scent was bothering me. He later told me he was just supposed to spray it for only 1 second few seconds but he walked around spraying it for around 20-30 seconds having not read the directions. I have had some mild nausea after that went away quickly but I had a headache for most of the day. The bottle has warnings on it that seem scary to me. I am panicking that my headache means I have brain damage and that the eye burning could have damaged my eyes. I wasn't in the room when the aerosol was being sprayed which is good but the fact that he accidently used 20-30 times the recommended amount is freaking me out. I have really bad health anxiety so I can't tell if I am worrying about nothing and this is just a normal reaction to a mild irritation by a chemical or if this is super dangerous. How do I know if I am poisoned or just having normal irritation from a chemical?