My roommate sprayed raid bug spray(imiprothrin, cypermethrin.) near my dishes hours before. i didn't know about it until after i used the cutting board, knife, and bowls to prepare and eat salad. what is going to happen to me? do i have brain damage?

The usual reactions to ingestion of pesticides occur several hours later & include nausea,abdominal cramps, diarrhea,dizziness, confusion but these are reversible. Call the poison center for.further advice.

Dr Colantino has provided excellent advice. Not feasible to determine if you possess brain damage in absence of a thorough examination. Ask this question to the doctors who evaluate you.