Strange "bent wheel" feeling

[12Corolla]

At low speeds, it feels like the front left wheel is bent. I get an up and down bumping sensation. At higher speeds, it seems like a slight vibration but isnt bad at all. Ive had all the wheels checked and none seem to be bent. Nothing seems to be holding the wheel from being flat against the brake rotors. Ive jacked the car up and spun all the tires. Everything looks as it should. I cant figure this out and its driving me crazy! Anyone have similar issues?

 

[stvotw]

Try swapping your tires around and see if the feeling moves. That will help pinpoint the problem as to rim/wheel of suspension.
Also, have you checked the balance on that wheel?