Absolutely! I was wondering if others experienced the same.
My first 3 4-AcO-DMT trips were intensely pleasurable, almost like MDMA in that sense, maybe even more so, and there was not a hint of darkness at any point. Even watching/reading/thinking about things that were quite dark in subject matter did not shift the focus of the trip from the loving colourful place it was at.
After those 3 trips though, all my trips have had undertones of negativity and anxiety ever since, and I've had countless trips on the stuff since.
Have you obtained more 4-AcO-DMT since? How was your 4-AcO-DMT stored?
I did wonder if this was due to the 4-AcO-DMT degrading, since we can expect it to break down into 4-HO-DMT when it degrades - which is typically a much shorter more chaotic and anxious trip, compared to the slow gentle progression of 4-AcO-DMT - such a conversion would explain the trips getting more chaotic the more you trip.
I'm not sure about this though, because I seem to remember other people saying the same thing but then purchasing more 4-AcO-DMT and still finding the trips to be chaotic.