Just a little bit of a correction, tulpas only sometimes fall into the category of headmates. It really depends on the tulpa. A lot of tulpamancers project their tulpas into imaginary friend like things that they can visualize following them and such. Also, quite a lot of tulpas are unable to actually switch (switch places with the host). Some can do what is called possession which is sort of an in between where the tulpa moves one part of the body such as the hands. (1/2)

But for the most part, from my own experiences along with what I have gathered from others, the majority of tulpas seem to exist in…