Hi, I'm 17 years old and I'm having problems with my upper and lower back, neck, and shoulders. This has been going on for about a year and a half. My pains aren't sharp, but more of a long lasting pain. I don't remember ever injuring myself that could of caused this. I feel this pain randomly, but noticed that it hurts if I wear something heavy. Any sort of heavy jacket will cause it to ache. Now, however, even a lightweight hooded sweatshirt will cause it to ache. Also, if I walk a certain distance or stand a certain lenght of time, my lower back starts to ache a lot. I've already been to the doctor, and he basically said that he didn't know. I took an x-ray, but I'm assuming there's nothing wrong with my spine itself (since he never mentioned anything), but he also said that it could be muscle related and that I should see a physical therapist. But, I'd rather not spend all that money on something that might not even work. And my mom recently used physical therapy with excersies and ultra-sound, but it didn't help at all. My mom also said that it could be that I might need to lose some weight and/or improve my posture.
Anyways, I'd very much appreciate if anyone can help me out by giving me an idea of what I might have and what I can do to get rid of this.