Hey you're a bit misinformed on some stuff here. First nobody in the world has ever overdosed on weed, it is quite literally impossible. You had a severe panic attack, not an overdose. I don't mean to rag on you because everyone makes mistakes but 6 BONG RIPS ON YOUR FIRST TIME SMOKING IS INSANE. Seriously has nobody ever told you less is better or just a general rule of thumb don't take so much of one substance when it's your first time doing it? No wonder you had a severe panic attack, 6 bong rips is like you have 12 shots of vodka when it's your first time drinking and expecting not to black out. Sounds like you greened out and had a really bad panic attack on top. Greening out in case you don't know is the alcohol equivalent to blacking out. Avoid that friend btw because no good friend let's someone do 6 rips on their first time. If you had 1 instead of 6, I guarantee you wouldn't have greened out and wouldn't have had to go the hospital. It's true weed affects everyone differently and people can be more prone to panic attacks, If you do ever decide to smoke weed again, please have one hit and see how you feel 30 minutes to an hour after, same with drinking. Also bongs hit harder and faster than a preroll for example. 6 bong rips for first time smoking is like you can't swim and dived head first into the ocean. You don't have any brain damage or will experience a stroke after. You are only at risk if you abuse weed daily for months and months and for some people years and years. You'll be fine. You're paranoid and went through a really shitty experience and I'm sorry to hear about that. But smoking weed one time and having a panic attack does not lead to any long term consequences for your health. As for the stutter, not sure. Did you have a stutter before? Maybe it's temporarily caused by a mix of panic and trauma with your panic attack. Maybe a speech therapist if it continues. Good luck 👍