A little over 3 hours ago my buddy ate 3 grams of mushrooms and I ate 5 grams. We waited for an hour and a half feeling nothing, until he started puking and about ten minutes after that, he was gone. Now he has been tripping hard for about an hour but I still feel nothing. I ate a sushi roll a few hours before consuming the shrooms, but I feel like I should still kinda feel it at least. Usually I eat them on an empty stomach and it takes 30 minutes. What could have caused the shrooms to not work, and what can I do next time to trip? Thanks.