I've never had any paranoia or anxiety whatsoever associated with weed.

But one time my roommate was smoking with my girlfriend and me, and we smoked about 2g of KB between the three of us. My roommate suddenly started slighting out of his chair and repeatedly asking us what the fuck was going on. He was hysterical for the next three hours, kept randomly moving around on the floor, getting sucked into closets, really bizarre shit. He was crying practically the whole time. Talk about a fucking downer.

Anyway, he's smoked a few other times with us and he's fine as long as he doesn't overindulge. If I were you I'd just watch out with the KB and know your limit.