My school probably thinks I'm doing drugs

went to the bathroom to blow my nose so I didn't have a repeat of yesterday. While I was blowing my nose a classmate came in and asked if I was doing okay, and I said yes I'm just blowing my nose. Asked I if I was sure and I said yeah I'm fine. Whatever. Then he went into the bathroom stall and when I was leaving I inhaled a nasal decongestant smelling stick so I didn't keep sniffling and then I went to class a bit with the jitters because I drank the coffee on a empty stomach. But it was only with hindsight did I realize smelling aggressively
Caged.