Comic: If you're worried about your roommate seeing them.. why not buy a few little containers that you can put a day's worth of pills in. Get 7. I'm not talking about the pillboxes since they're obvious. Just some little container for holding who knows what. Hell, get a change purse and put a plastic bagging inside as a liner. When she isn't in the room (what's her shower schedule like? Is it consistent? If so, do it then!) refill the container.

Then just keep that in your bag, and take them in the morning when you go to brush your teeth. I take mine in the morning because I am utter crap at remembering things later, and my morning routine is my most consistent.