what is happening to me?! SOMEONE HELP please?

[Joe]

okay here's the situation. For the past month or so, i've had this strange thought that keeps popping up and its stressing me out a ton! i was diagnosed with anxiety three years ago so i don't know if that will influence what you say. well the thought is this "what if the world is set up so that i'm like a research project" or "what if im being seen by cameras" like i keep having these stupid thoughts that are basically like conspiracy theories against me. i don't believe these thoughts just as you don't believe all of your thoughts as well. but this is driving me NUTS. does anyone know if this is just an obsession similar to what people with OCD have? or is this something else? how do you treat this? thank you!