I have a really weird problem with my relatively new 2013 rMacbook Pro. Since I got it the trackpad hasn't seemed quite right. When I first got it I remember thinking that the left side of the trackpad was a little harder to press down than the right and the 'click' feedback didn't really feel the same for both sides. A really strange thing is that this sensation increases the colder the Macbook is. So when I take it outside for a while and start using it the left side feels like it's broken, it almost feels like there are two levels to the click. I had a certified apple repair shop take a look at it and they said that they couldn't find the problem after a quick look and that I would have to leave it in for closer inspection. I declined since I'm taking a bunch of programming courses at the moment and really needed the computer until those were done. But now for the last couple of days I've been experiencing something worse. The entire trackpad gets this mushy feeling all over it until I press down on the right side a couple of times and it returns to normal. It got so bad once that I couldn't even click it down all the way. After googling around a bit I noticed a couple of people have similar problems and in several of those cases people were saying that it might be the battery expanding. If this is the case then I obviously need to give it to the repair shop ASAP, but right now I'm in the final moments of those programming courses and really, really need the computer. My question is does the expanding battery hypothesis sound plausible? And if so do I need to send it to Apple as fast as possible, or could I wait two weeks until my courses are over? The Macbook was bought three months ago so I'm not worried the warranty going out before I send it to apple, but I am worried about it breaking completely because of the battery and me not being able to use it until they send a new one. EDIT: I should also mention that I have not spilled any liquids on it, nor have a abused the trackpad, and the guy at the repair shop assured me that there didn't seem to be anything that I could have done to cause this damage.