Hey. Sometimes, I can't convince myself that people actually exist. Like, it's a fake identity. Other times, I start questioning my personality or why I'm here. I'll think of myself in third person, as a character. What is this?
So, the term the could fit with what you are experiencing is depersonalization or derealization. Or even both.
Depersonalization symptoms include:
Feelings that you're an outside observer of your thoughts, feelings, your body or parts of your body, perhaps as if you were floating in air above yourself
Feeling like a robot or that you're not in control of your speech or movements
The sense that your body, legs or arms appear distorted, enlarged or shrunken, or that your head is wrapped in cotton
Emotional or physical numbness of your senses or responses to the world around you
A sense that your memories lack emotion, and that they may or may not be your own memories
While Derealization symptoms include:
Feelings of being alienated from or unfamiliar with your surroundings, perhaps like you're living in a movie
Feeling emotionally disconnected from people you care about, as if you were separated by a glass wall
Surroundings that appear distorted, blurry, colorless, two-dimensional or artificial, or a heightened awareness and clarity of your surroundings
Distortions in perception of time, such as recent events feeling like distant past
Distortions of distance and the size and shape of objects
Both of these can have a variety of causes ranging from high stress to trauma. While the occasional experience of these symptoms can be normal, when they become frequent or cause problems for you in daily life it could be in your interest to seek professional help. There are some grounding techniques that could help you stay grounded and more connected. Also, finding things that could be causing the distancing. Especially anything causing high stress, if there are any triggers, recent or past trauma, grief. I do highly suggest seeking any form of therapy to help cope and understand the cause of these symptoms. I hope that this has helped. I wish you the best of luck! Live long and prosper!