How to create a menu from content type fields found on a node?
You could build this with the Field Group (https://drupal.org/project/field_group) module, which will allow you to group your content fields into horizontal tabs, vertical tabs, accordions and more. By default, groups with only empty fields will be hidden, i.e., they will not display in the "menu". 

While this would not create separate pages, your use of the word in quotes makes me think this would be an acceptable answer. 

There is a decent tutorial at https://www.youtube.com/watch?v=5GU_tb4K-f4.