First of all, i'm not a native English speaker, so im sory for my bad language 
i bought my 2010 model 15" MB pro about a month ago, and i started to hear clicking sounds from right side when i shake it. so i googled it and saw everyone has that issue, and everyone was saying that the sound comes from motion sensor, to protect the harddisk. then i said ' well, it is normal ' and forgot about it. but, since a week ago, that sound started again - but in a different way. first, i heard it when i MOVE my mb pro. second, i started to hear it when i push the back of MB pro lightly, and now, that stupid sound came whenever i TOUCH the back of laptop >( and not only from right side: WHEREVER I PUSH. It is like the case moves down, and touches something in the computer. i know i cant explain well, but this is the best i can
like the case is a "soft" thing and it "can twist" down and touch the harddrive, the memory, or whatever inside the computer
usually, it wouldnt be a big problem to me, but im afraid of the possibility of the case may harm my hardware.
question is simple: what is this thing, and what can i do?
please help
i bought my 2010 model 15" MB pro about a month ago, and i started to hear clicking sounds from right side when i shake it. so i googled it and saw everyone has that issue, and everyone was saying that the sound comes from motion sensor, to protect the harddisk. then i said ' well, it is normal ' and forgot about it. but, since a week ago, that sound started again - but in a different way. first, i heard it when i MOVE my mb pro. second, i started to hear it when i push the back of MB pro lightly, and now, that stupid sound came whenever i TOUCH the back of laptop >( and not only from right side: WHEREVER I PUSH. It is like the case moves down, and touches something in the computer. i know i cant explain well, but this is the best i can
question is simple: what is this thing, and what can i do?
please help