You need a rolling book bag . I know they're not "cool" for kids your age, but it kills me to see all these young, developing spines hunched over with a giant turtle shell full of books on their back.

I'm A LOT older than you and have had many people look at my back over the years. They check for scoliosis in school here as well as doctors growing up. I've had lower back injuries as well, so my spine has been well traveled. No one has ever uttered the word "scoliosis" to me.

After working my way through the system and getting to PT's, chiros, osteos, etc, I have scoliosis now at T3-T5. That sounds quite similar to the area you are describing. I've challenged all of them with using the term scoliosis versus muscles pulling the T segments out of whack and they've all retracted their scoliosis claim.

Some things I would look at are basic muscle imbalance from carry a heavy load. You can't underestimate the havoc it can play on your body as one area tries to compensate for another. Without treatment (4-5 minutes is not treatment), it will become worse. Long Thoracic Nerve injury/irritation from carrying your load could be another option. There is also something called T4 syndrome. It's another waste basket syndrome, but there are similarities. Thoracic Outlet is another option, but you could just have postural issues from the weight and then head forward, bent over position when you write and sit at school all day.

For me, I love my laptop. I can control my head position and do a better job at posture control. Writing is horrid. I can't write with my head up, so my posture goes to &^%$ and in turn, I start writing like I was back in kindergarten.

I'm sorry they didn't grant you the use of a laptop. I bet you look normal and healthy too, so the "Lord of the Rings" animator can't "see" your pain . Easier said than done, but you have to eliminate the offending element and for starters, it's probably that backpack. Can you get an ereader for school with your textbooks? IPad? Kindle? Ebooks on your laptop? Good luck with your tests. I know they're timed, but a few postural breaks may help you get through them.