I think you just bugged, when I started years ago the same shit would happen. Just tell yourself its just weed. The best thing to do is watch movies or play video games so you wont think too much into stupid ass shit and bug out. Weed tends to make you think wayyyy too much into stupid unrealistic things if you dont know how to control it. I was the same way when i started years ago, now look i smoke 5 times a day and i can function exactly the same as if i was sober, except every things bit funnier, lol