I just had a thought, reflecting on my two bad experiences on acid (once +2c-e). Both times, the panic hit me suddenly after 8-10 hours of a great trip, and both times while I was smoking - but not smoking for the first time during a trip, so I figured it probably didn't have to do with the weed. What I just realized is that both times, I started freaking out shortly after taking a too-big hit and having a coughing fit. I'm wondering whether maybe a shortage of oxygen caused these experiences?
One thing I found after some quick Googling is http://www.panicattacksko.com/panic_attacks_breathing.html, which says that it's not really clear what's the cause and what's the effect when it comes to panic attacks and difficulty breathing.
I don't think these things were panic attacks, exactly - the best way to sum them up is "pure dread resulting from forgetting everything, including that I am a person" - but maybe they're the more intense during-trip equivalent? They also seem pretty inescapable; neither ended until went to sleep and woke up (the first time, in a hospital).
One thing I found after some quick Googling is http://www.panicattacksko.com/panic_attacks_breathing.html, which says that it's not really clear what's the cause and what's the effect when it comes to panic attacks and difficulty breathing.
I don't think these things were panic attacks, exactly - the best way to sum them up is "pure dread resulting from forgetting everything, including that I am a person" - but maybe they're the more intense during-trip equivalent? They also seem pretty inescapable; neither ended until went to sleep and woke up (the first time, in a hospital).
