rattle/knock/clunk from front when driving straight

[Leetheslacker]

okay. so.

i have this knocking sound that seems to be coming from the front left wheel.

it varies by speed. slower at slow speeds and faster at higher speed.

it seems like i can feel it in the floorboard with my feet when its happening.

if i turn even ever so slightly it goes away.

if im braking it goes away.

i took the wheel off and poked around and everything seemed okay, but something has to be making that noise.

its driving me insane and i have no idea what is causing it. help.