@OfFigsAndFerns have a look at the #MECFS criteria, if you haven't already, to see how your symptoms compare. The most stringent is the IOM 2011 ME criteria.
There should be a section on differential diagnosis as well. Maybe you can suggest to the doctor that you're concerned you might have ME/CFS or one of the similar disorders? Then leave it to them to come to their own conclusions. Good Luck.

