I got too high last night

I was gifted a box of brownies by a friend who said they were completely inedible since they'd knocked all their weed into the batter by accident. These stayed at the bottom of my freezer for a year before I decided to try one.

It was as I was swallowing the last bite of the biggest brownie in the box that I remembered my friend's strong STRONG warning to only have a teaspoon at most. At that moment I knew I was screwed. I should have made myself throw up.

Instead I started preparing for my upcoming ordeal. I fed my dog his dinner early, let him out to pee and filled his water bowl. I ate a quick dinner, got a bottle of water and lay down in my bed. I'd been overly high before, it'll be fine.

In that first hour, after they kicked in, I had a full body high like nothing I'd had before. I was thoroughly uncomfortably high. And since edibles take time to build up so I knew this was the easiest it'd be for a long time.

In the second hour I just.. started to lose my mind. My vision's frame rate dropped to maybe a few frames a second. It was hard to form thoughts, or do anything. I couldn't get out of bed. I could vaguely understand I was lying down next to my dog, but it was taking all my effort to keep my eyes open. Forming coherent thoughts felt like wading through honey. I tried my best to go on my phone but I had no ability to read or follow video content or anything. Every time I looked at the time I'd get freaked out that maybe 1 minute had passed when it felt like hours.

It was when I closed my eyes that things really went off the rails. Suddenly everything I could see in my mind's eye seemed equally real as the world I'd see with open eyes. My brain had completely disconnected from the real world and now nothing and everything was real. I spent most of that hour trying to keep my eyes open because the extreme dissociation I'd get when I closed my eyes was scaring me.

This is going to sound stupid, and is the reason I'm typing this on reddit instead of telling my friends. But at the third hour I found if I closed my eyes I'd slip into a world of pure anxiety and unpleasant feelings. My entire existence was suddenly a whirlpool of negative and unpleasant emotions. And I was so disconnected from the world that I literally didn't know how to open my eyes anymore. I thought this was the real world, and that I'd always been here and that any vague memories of the "real world" were just a lie. Honestly after a while I was hoping that my existence would simply end, as it was just so unpleasant.

After that I have flashes of stumbling to the toilet and throwing up a couple times but very little memory of anything around those points. I had the edible at 6pm and the time I checked the time was 8pm so I feel like I lost a lot of time.

I woke up today feeling like my brain has been through the washing machine. I'm having a lot of trouble focussing on anything so took the day off work. Has anyone else experience anything like this? Is there a chance my brownie was actually spiked or something? Other times I've been too high was the normal weed anxiety, or "omg I'm gonna be high forever" stuff. Never extreme disconnection from the world.