Hi. I just saw some ants in my dorm room. I saw one at my desk. And the others I saw by the furnace. I don't know what to do. We don't leave open food out. Most food is sealed or in the fridge. We clean up and all. But they are still here. I haven't told my roommate. But will when she wakes up. Cause it happened yesterday and today. I can't go back to sleep and they are bothering me. I have OCD and ants just bug me out. Help please.