Comment by jerglingu

Had a similar experience, but with the much more tame marijuana. It was a 6-hour long panic attack for me. Similar to the author of this, I read for years of how "the only way it could ever harm you is if you were crushed by 100 lbs of it" on sites like Reddit. It wasn't until after getting high that I heard about marijuana amplifying stress tendencies in a minority of people. I've always been high strung, and maybe my experience reveals something that needs fixing inside of me, but given how marijuana turned my anxiety up to a measure that has only ever been matched by an actual panic attack, I'll avoid LSD (and anything similar like shrooms) like it's a loaded gun pointed right at me.