Macbook Pro screw and foot coming off
I have a Macbook Pro, Early 2011 model (non-retina). On the bottom right corner, on the underside, a screw keeps coming loose after multiple attempts to screw it back in. As well, the rubber foot on that corner is coming off. Neither of these issues are occurring with other screws or feet. Is there anything I should do? Is it possible that something inside the casing is causing that area to be problematic? I found this link in regards to the foot, but I am unsure if it applies to me. Thank you very much.
MacBook Pro (13-inch Early 2011), OS X Yosemite (10.10.3)