I had something like that happen on a high dose of ALD-52. I thought I was dying, then when that didn't happen, I thought the world was ending. I knew that everything would be okay because we were just going to shift into another dimension in another universe before it was all over. My entire life up to that point seemed completely fictitious and only happened so that I could learn an important lesson. I thought I was the universe, but just playing a role as an ordinary person living an ordinary life. I knew that I had crafted this to happen before I incarnated, and thought it was hilarious that I would choose to end the world at the peak of an acid trip. It all made perfect sense at the time. It was a weird day with a big storm rolling in around the same time as well.
Things is, I believe we are all the universe, experiencing itself as each individual life form. However sometimes this realization on trips can become an ego trip, like it means you're special in this regard, instead of all of us being the same in this way. And of course other delusions such as "I'm dying, and taking existence with me". I believe there is truth to these experiences but that it is just that we are all the same force of awareness, and that awareness, awareness itself, is a property of the universe. Life is one infinite dream of the universe to avoid utterly lonely isolation of being a singularity.
My first trip ever showed me this perfectly and beautifully, a mushroom trip on only 1.75 grams. It was crystal clear, as if waking from a dream, where the dream was my life, and the truth was entirely self-evident because I remembered it as you remember your life upon waking from a dream, and realize how ridiculous it was that had just been fully believing the dream was the extent of your reality.
Can't imagine taking 300 ug. Max I've taken was 150 µg and had a pretty rough trip. Retrospectively, I also wasn't in the best place of my life, so it was kind of a wrong "setting" situation. But still, effects were so strong that I never felt the need to push the dose as high again.
My first time on ETH-LAD was 300ug. I was actually with it enough that I was able to climb boulders and stuff, and I remained totally centered within myself, despite the visuals being so intense I could hardly tell what I was looking at. But that was when I was still working through a natural insane tolerance to lysergamides... for some reason I used to not be able to trip on LSD/lysergamides, my first AL-LAD trip I had to take 600ug to get a strong trip, the first time I even got a single visual off of LSD was with 500ug, I used to sit there not feeling anything while my friends would be tripping balls off the same batch. Then gradually over the course of years, I started to be able to trip on lysergamides and now 50ug of LSD will give me visuals and make me trip. So these days I bet 300ug of ETH-LAD would be insane.
I had a full set of 7 reagents that I threw out a few months ago unfortunately (16+ months old, non refrigerated, they turned bad).
I was at a friends house and did a quick ehrlich test and it certainly passed, so that was good enough for me.
and I know my drugs and brain well enough to recognize this certainly as a lysergamide - all the typical signs, symptoms, etc...
I actually loved these tabs, they were just... different, longer to kick in and seemed to last longer (12-14hr to baseline)
so many factors at play though
I wish I had easy access to some gas chromatography lmao
ETH-LAD is shorter than LSD. I doubt your tabs are ETH-LAD as ETH-LAD is at least twice as expensive as LSD and much harder to make (they stopped producing it because yields are abysmal compared to LSD or the 1-subs like 1a/1p/1cP-LSD). But could be, you never know.