To me, it seems like there's a wide, wide variation among HCPs in any specific alternative-type health profession. One chiropractor may only do adjustments, while another treats a wide range of health issues holistically with a mix of structural work and supplements and dietary advice and other approaches. Although I don't have experience with the specific problems you mentioned, I'd absolutely expect some chiropractors to be knowledgeable and helpful in dealing with them.
At this point, I tend to seek out people who are experienced with the problem I'm trying to address, regardless of their particular degree. And finding someone that you feel listens to you well, and explains things in a way that makes sense to you, that's at least as important to me.
I'm also partial to Traditional Chinese Medicine, my acupuncturist does a great job explaining how things are interrelated, but I think part of the reason I really considered TCM is because she communicates so well.