Could this be "stress"?

My guitar is trying to murder my ears. One of the strings gets too sharp from the 1st to the 6th fret. ITS KILLING ME! I found adjusters on the bottom of the string holder but it doesnt work for long. I'm like, ready to throw it down and listen to poorly composed music!

Schools helping the guitar on its quest to destroy me, by piling up and leaving me little time to do anything extra. In fact I need to go and catch up on my chemistry right now laterz!