You can't fake something unintentionally or unconsciously.

Faking an experience is done with full knowledge and conscious intent on your part of what you are doing.

If something is happening to you unintentionally, if you are doing something and unconsciously, you are having a legitimate experience of some kind.

If you're faking something, you're doing it deliberately. Faking something isn't something that just happens to you. An experience is something that just happens to you.