My pump is pretty rooted it sounds like a fan when at wheel lock and it loves to groan, my current issues are caused by a leak in the return hose for the power steering reservoir and general age of the pump, it should be alright, if its whirring and groaning but you can turn the wheel with less than three fingers it has some time left, usually. mine has been whining for about a year, checking the fluid sounds like an insult but definitely check, mine whines louder when there's even a tiny bit under full (use the lid dipstick)
a reconditioned pump is pretty cheap, you could buy a new one or recondition your current one with a kit off ebay, but obviously this would have to wait for your return home
However power steering noises are pretty noticeable from the front of the car with the window down, not sure what this info is worth but I hope it helps