SWIM never gets nausea from mushrooms even at super high doses.
I think it's the proteins in the mushrooms causing the nausea in some people. Most people who report nausea with the mushrooms don’t get nausea from a pure extract. Try steam cooking dried mushrooms 15 minutes before use. That should make them easier to digest and also increase their potency by helping them to keep their psilocin content (it destroys the enzyme that turns psilocin to an inactive blue substance).
You may remember me as 69Ron. I was suspended years ago for selling bunk products under false pretenses. I try to sneak back from time to time under different names, but unfortunately, the moderators of the DMT-Nexus are infinitely smarter than I am.
If you see me at the waterpark, please say hello. I'll be the delusional 50 something in the American flag Speedo, oiling up his monster guns while responding to imaginary requests for selfies from invisible teenage girls.