Weird noise coming from mbp 13"

[Gilgolf]

There is this weird noise that sounds like a disk that my MBP makes when I am using it. I think its the hard drive and appears to be coming from the left of keyboard. What should I do?

 

[mdnz]

Does the noise only occur when not using the hard drive? (e.g. idling or just browsing the web)

 

[Gilgolf]

i just decided to take it to the apple store, turns out it was the fan, they replaced in 15 mins. for free