You really need to get this diagnosed properly. I personally wouldn't have any more totally blind attempts to ameliorate the symptoms - by being pulled around - until you know more.
There may be very little wrong, but you need to know just what is going on. With an important career at stake, I would insist upon, or pay for an MRI and a consultant's opinion.
Age is a big factor. Care to share that?
I've talked a lot about traction in the past, but sometimes, all the back wants is to rest - with the proviso that nothing is nibbling away at a nerve. By this I mean the strand-like structure of a herniated disc touching the spinal cord. It only takes a teasing of the outer (of three) sheaths to be irritated, to cause some muscles to go into spasm. This loads the joints even more...the disc then (perhaps) bulges more, and the whole thing winds up into miserable pain. All this from a very minor problem.
The problem is, the Intervertebral disc pressures are greatest when sitting, and endless leaning forward to tweak the things pilots have to tweak is an endless source of irritation. Certainly, if you can find a lumbar support that makes the whole thing feel at rest, then you're well on the way to a successful outcome.