Disski, I had no idea you were a PT! The problem with some health plans in the states is that they won't let the PT make a diagnose. The patient has to go through the red tape of having a doc diagnose, and then make a referral to a PT. But this is not always the case. Depend supon the plana.
On the subject of dianostics, if you suspect arthritis, even the best doc in the country cannot diagnose you over the internet. Somebody mentioned the Sun Salutation. Depending on your condition, that can absolutely dripple you forever. Which is why an accurate diagnose is crucial.
As far as chiros go, do a search on this forum for "chiro quacks". Its a hit or miss situation, and you need to be careful.
In many threads on this forum, we have discussed the transverse abdominal muscle at length. The transverse is responsible for balance, stability, alignment and supporting your internal organs. No amount of stretching or crunching will help if your transverse is inactive. Need to get to work, but if you search for transverse abdominal muscle, you will get some useful info. Good luck!