I know you said you'll go to a chiropractor but I just want to lend major support to that plan. My guy could tell from my x-rays what seat I sat in. All of the combined years of repetitive motions created a pretty good curve in my spine. I was sold after that. Since everything in the body is impacted by the spine, I think you'll appreciate the time and money you'll put into regular adjustments.
After I started going, he recommended an inflatable back pillow. I found one made by Relax the Back that self-inflates and has a small footprint for traveling.