I opened up my 2015 13 inch rMBP this morning to discover that my trackpad no longer "clicks". By this I mean when I put downwards pressure on the trackpad it is no longer physically moving and therefore not clicking the mouse. Luckily I always have it set to 'tap to click' so that way still works, however the trackpad no longer makes an actual sound when pressed on, no matter how hard or deep I press. Obviously this also means that I can't use any Force Click actions. I haven't spilled anything on it or dropped it at all, so I can't think why this has it has suddenly stopped working. Is this issue fixable myself or do I need to take it into an Apple Store to repair?