Awkward!

I have a new perdicament I have never faced before. After being in college for 6 years I have had many different roommates. The mean one, the good girl, the rebel, the vain, the immature, the annoying, the awkward (this might have been me a couple semesters), the quiet, and the way too loud. All of these I can deal with....tell the vain one to get over themselves...tell the mean one they are a jerkface!...have the good girl live a little...avoid the annoying if at all possible...as for the awkward there is usually potential there you just have to take them under your wing and help them realize there is more to life than being awkward ALL the time (it usually works, I think it worked for me....maybe). This semester I have noticed a smell in my apartment that has slowly been building with each passing day. At first I thought it was the trash because I am the one who usually takes it out. Then I thought maybe there is something rotting somewhere in the apartment. Nope. I even took out my bedroom trash for good measure even though it was just filled with paper. Then this afternoon as I was sleeping ever so peacefully on the couch under my favorite fuzzy red blanket. My roommate comes out and slams her bowl and her can of food loudly on the counter and wakes me up. I don't wake up easy so good job! I decided I should make an effort to be friendly now that I am awake. We start a casual conversation and she comes over by me as she comes closer I notice a smell but try my best not to smell it or pin it on her. Then she leaves to go back to her room and the smell dissapates a little. I don't know what to do! I will most likely just continue to pretend like I don't smell anything and endure for the next 2 weeks.