Weird Dissociative thoughts Today:

so i don't remember anything from yesterday except when i went downstairs to eat with my partners. i had made pot roast and my girlfriend got me a piece. as i was cutting into it with my fork and peeling it apart i started to imagine doing it to myself. to my arms to my legs. i was imagining it so clearly that when i took a bite i panicked thinking i was eating human flesh. IT WAS SO PANIC INDUCING. i don't know how to deal with this. i just dissociate into nothingness and have such weird experiences.