I am going to sound like i am completely insane but please be kind to me as I feel like I'm having some sort of existential crisis. Over the past few days I have been having really intrusive thoughts about how we can never prove anyone else's consciousness but our own and how do we actually know that what we perceive to be the world is real and not some sort of elaborate illusion or simulation. I'm worried thst everyone i know and love might just be projections of my mind. Has anyone else had thoughts like this? Please make me see reason.