This has happened to me several times. It strikes me as pretty interesting that I would vomit without actually swallowing any physical substance.. to me it's good evidence that what is happening is a kind of spiritual purging in the same way that people talk about with Ayahuasca - getting rid of "the bile of your life".

One time I was smoking Changa in a circle with my girlfriend and another couple that we were friendly with. When it came to my turn, after exhaling the smoke, I fell forward and began to wretch. From the sounds I was making you would have sworn I was throwing up a LOT of physical material.. I also visualized two beings standing in front of me like guides, watching over me as I went through this uncomfortable but necessary process. When I sat back up there was a tiny spot of sick on the carpet, yet I felt better than I had in weeks.

Does anyone else purge from smoked material?

I have never vomited when smoking, however I often have a "mucus" purge, a lot of mucus starts flowing from I don't know where and I end up spitting it, it's not only saliva it's mucus and sometimes I find small paricles that look like dirt or dry blood. This happenes after a few weeks of not doing DMT often.

I always feel great after that.

One time I smoked some chang on the beach and nothing happened, one of those misfire events.. About 30 minutes later we started walking back to the village and I dry heaved quite harshly out of nowhere, was sure it was gonna bring something up..

But one thing I felt / noticed / saw was that I heaved out some kind of black energy that whisked away across the ground back towards the sea

As you yourself said spiral347, I felt better than I had in weeks

One of my first times smoking Changa I purged. Another time my lungs purged, like a really hard, heaving cough and I coughed up a large black blob. Another time I had to run upstairs and pee for about 3 minutes, and most recently I coughed/ brought up a clear mucous like fluid.

So yeah, not every time, but it has happened to me a few times.

Same here. Glad to know I'm not the only one.

i have had what purges described as a "lung purge" from smoalking before, but never had any nausea of any sort

Interesting.. I'm glad I'm not the only one.

The last time I smoked changa was after a break of about 7 months. I had been holding kind of a grudge against a friend of mine because of something that happened. Upon smoking I suddenly became aware of all the negative thoughts I'd been harbouring, saw it as a kind of black ball of tar deep inside me churning and being fed by my own ruminating. As my awareness of it built I felt it rising upwards and finally out of me into the toilet that I was now hunched over.

It made me see how harmful things like grudges are.