Have you seen a doctor yet to see what exactly is going on in there? There are so many different back problems, it's really important to get an accurate diagnosis. If it's affecting your breathing, that makes me think about scoliosis, but it would be very evident to you if you had a severe enough scoli to compromise your lungs.
If you've seen a doctor, can you give us more information?
If you haven't, I would start with your family doctor. He can do some basic tests and then refer you to a specialist if necessary.
I hope you can get some answers and relief.
Emily
