I Hurt My Back Two Years Ago In A Boating

I hurt my back two years ago in a boating accident. Initially the pain was unbearable. After a couple days it got better but has still hurt since. Lately it has been getting worse (within the past 6 months). It hurts right in the middle of my back and wraps around my left side. The pain is hard to explain. It feels constantly tight like I always need to crack my back but it won't crack. When I twist my body/move a certain way it hurts so bad it takes the breath out of me. When I turn over in bed is one the times it hurts the most. I know its hard to tell what's wrong just by explaining it but I was hoping you could give me some idea of what's going on and whether I should go see a doctor. I went to my pcp and she just blew it of. Thank you, Rachael.