My school probably thinks I'm doing drugs

First day I came in, extremely anxious and visibly nervous. I forgot my stuff in the car and stuttered a bit. Pretty normal, it's whatever. As the day went on, I got a bit stuffy and kept sniffling and coughing, and it was so obvious I was trying to hold both back but just couldn't control it.

Fine, whatever, they probably think I'm a bit sick or it's allergies.

Second day I came in, I was exhausted, only had 2hrs of sleep. I actually started to fall asleep in class and was drowsy asf. Kept closing my eyes and fighting actual demons to stay awake. So I drank some coffee from the vending machine on my break and 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 in the bathroom probably comes off as extremely suspicious.
Just now realized that flint is also in school