Is it normal to inject coke into my nose while i'm sleeping?

Since I was about 15 I have experienced similar symptoms as a cokehead from time to time. When I'd wake up my nose would be runny or something. It started out as a joke about someone injecting coke into my nose whilst i slept, but I soon noticed that when I would stay up all night my sister would come home at 5 in the morning all coked out. So basically, every time she did coke, I would get her symptoms... runny nose, staying up, not eating much, dripping sensation. I've never snorted the stuff myself, but we always joked about it the next day and thought it was very strange.

Now I don't live with my sister anymore, but lately I've been staying up late and unable to eat food, especially late at night. Sometimes the inside of my nose gets sore. I think it's because she has been doing coke again even though I asked her and she said she wasn't. When I feel these things I get mad at her for doing coke because I wish she'd stop, for one, and I don't want to go through the symptoms of something I don't even do. But we don't talk as much anymore so... I don't know, for that reason I feel like maybe it's just allergies or something.

Is this normal?.. Experiencing contact high from someone close to you from miles away?