Are Chakras an actual thing...or is it all just imaginary?
I think it is for sure! But probably not sensed by just anyone...it's an energy thing. LOL
There is a connection between emotions and the central nervous system. Back aches, stomach pain, headaches and a tightness in the throat can all come from stress.
If there is a connection, it's due to the area people are referring to when identifying what needs to be healed. A spiritual reference is not one I can see as being real.
I think they go by many names, but it's the most prominent name of reference. The idea of the body having currents of energy, analogous to the way that oceans have rivers.