When I had ego death, I (if you can use that word) was sort of trapped/floating in space in the universe for an eternity, felt like billions of years. But there was no planets or stars, just a massive void, and my tiny speck of consciousness.

Finally, the void "burst"/exploded and the energy from it caused me to feel "pain" the likes of which I can't even describe. It was like being hit with a laser beam that tore every atom in your being apart.

When I did, I realized it was the birth/creation of the universe, the "Big Bang" (except it's not one bang, it's a never-ending cycle) and I woke up in my bed.

I once experienced existing in multiple points in history as multiple people (no clue who they were) of all ages/ethnicities/gender simultaneously.

The other ones are things that felt related to various religions, except I wasn't aware of what they were until afterwards. But I have never been exposed to religion, and don't have any beliefs.

There are two that stand out to me.

1. I had an experience where my partner at the time, it felt like we were the same being. Two sides of the same coin. This experience wasn't going so well, and I was trapped in bed (not physically restrained, just that I couldn't get myself to move).

And the gist of it was that, I was trapped in time and forced into a choice, and it was to either let myself die and stay there eternally, or create the universe.

The theme was essentially this two-sided entity that wanted to create and then experience the universe to entertain itself, but in doing so would also unleash all the pain that would ever exist.

Later on I wound up running across the concept of the "Demiurge" in Gnosticism, and that aligned pretty nearly with my experience.

2. Nearing ego-death and in my head having the phrase "I am Who I am" repeating endlessly. It had several meanings. "I am", "I am who?" "Who am I?" "I am who I am." At some point I woke up and was speaking some very foreign sounding language that I couldn't stop and I had never heard in my life. I want to write it off as gibberish but the way the sentences flowed grammatically and my voice inflection was not something I could off-my-head improvise in a made up language and sound that natural.

Later found out that phrase has some religious meaning.

Alright, there's most of the batshit crazy stuff you won't believe haha.