If a chiro gives up on you 'too quickly,' say good riddance and find one who understand how to help you heal. Not all chiros are of equal skill sets. In my experience, only 2 in 10 are really good. The rest are just using the method they were taught in chiro college and do not have the outside the box diagnostic and treatment skills. I've known chiros who left the profession because they just did not have what it takes to be good chiros.