My thoughts doesn't feel intrusive, it just feels like they are there, constantly, chronically, not as pop ups, they are just there, CONSTANTLY. is that intrusive thoughts or something else

for me, it's like there's two folders of my thoughts, 'main thoughts' and 'sub thoughts' and it's like a background voice of my background voice, you know? like so quiet and irrelevant but it's still here and i can try to ignore it but not fully and it feels like it's just really nasty, like it's warring with me, never shuts up and just keeps nagging me with those thoughts

are they truly intrusive thoughts or am i thinking and creating automatically graphic images that i dont want to think? i think it happens because it's too easy once you're anxious abt it. i dont enjoy it. i just saw a trigger and had a graphic disturbing se&ual image in my head.

Please how can an intrusive thought be distinguished from our own thoughts ?