Hey guys, for those of you who were diagnosed with a bunionette/ Tailor’s Bunion, how did they diagnose it…

Hey guys, for those of you who were diagnosed with a bunionette/ Tailor’s Bunion, how did they diagnose it definitively as a bunionette? To be honest , I’m not even sure what I have, cause while mine looks like a bunionette, it appears that other bunionettes are fixed conditions while mine swells up and down, and sometimes even disappears with medicine. Also, there have been other suggestions on Facebook that it might be a tendon