I can understand that you don't like doctors and I'm not a fan of chiropractors for any kind of care.
That being said, what you really need is to have a complete evaluation from a spinal surgeon, either and orthopedic surgeon that specializes in spines or a neurosurgeon that specializes in spines only.
That is the only way you are going to be diagnosed and get the proper treatment that you need.
Sounds like you will need an MRI to aid the spine doctor in a diagnosis.
Physical therapy may be of help, but it has to be ordered by a doctor and you need a proper diagnosis first.
Treating you with physical therapy without the proper diagnosis could do more harm than good.
Once you have a diagnosis, you can begin treatment on your spine and return to a normal life.
Good luck
Fran