So... There's something wrong with my K100D's sensor. I tried a bulb shot and during all the time the shutter remained open, the camera would make a continuous clicking sound it had never made before.
My boyfriend suggested it might have been due to low battery, but I recharged such batteries and kept hearing the sound. I removed the lens and kept the mirror up with the cleaning option, took a look and the sensor was shaking sideways. Long exposure or not, photos appear off-center, it's the only way I can describe it. I have attatched some examples.
I have always taken a lot of care of this camera, I have never dropped it. Though I'm starting to think something might have moved roughly in a recent bus trip... The driver would go over the speed bumps without braking, causing us passengers (and belongings) to literally jump off our seats and land violently...
Has anyone has anything like this happen before? Any help and tips would be very appreciated!