Could Citrobacter Diversus Be Normal Ear Flora?

I'm a medical technologist. I clean my ears with Q-tips every so often to remove the wax. The wax in the right ear is always odorless, but curiously, the wax in the left always has a foul smell. I planted the left ear wax on blood and mackonkey plates, and a gram-negative rod grew out (not pseudomonas, because it's indole-negative, and neither the colonies nor the gram stain resembled pseudomonas). I'm guessing it's citrobacter diversus (citrobacter freundii is indole-negative). Can c. diversus be normal ear flora, and why would it always only involve the left ear? I haven't had an ear infection in ages--whatever it is just seems to be harmlessly colonizing there