Sharp Back Pains

Hi, I'm a 17 year old girl, & have been experiencing sharp pains in my mid back area. I randomly woke up yesterday morning, June 14th 2011, with mild pains, and had those pains throughout the day, but since I woke up this morning June 15 2011, it was to the point where I couldn't roll over in bed without having major pains, and couldn't get up any way without having a sharp pain go from my back to my stomach.
My pain is soo bad that I cannot put my arms up(ex. do my hair, wash my hair), can't bend down a little just to wash my hands, can't stand up straight(been walking with a hutch in my back, like an old lady), can't turn to the side to grab toilet paper without feeling pains, can't roll over in bed without sharp pains & can't get out of bed without sharp pains. I also have been trying to straighten my back, it hurts, but its getting less painful each time i stretch it out.
Has anybody experienced this? If so what did you do about the pain? & if you saw a doctor, what did the doctor say it was?
I am not too sure if I should see a doctor, or a chiropractor about this. Can anybody give me advice & answers?