Good evening fellow ford drivers...

Always been paranoid there's possibly something up with my clutch/gearbox or maybe rear bearing

Back end used to hum a tiny bit on passenger side, gears have been sticky on a few occasions, but now when i nail it in 2nd and 3rd, once higher up the revs, there's a noticeable noise, sounds identical to wind rushing in a hole or slightly open window,

car is a fiesta st, 2008, 42k if it helps

thanks,