Literally I have no idea what it is. I’ve tripped a total of 5 times in the 18 years I have been on this beautiful planet. The last 3 times, the shit in my ass feels so uncomfortable and I really have no idea why. So I’m on this toilet, fucking drenched in sweat and contemplating my life as I shake furiously attempting to release this shit from the reluctant, and merciless grasp of my ass. but no matter what i do, no matter how hard i try, nothing ever comes out. honestly felt as if was gonna take off like a rocket i was pushing so hard an nearly burst a vessel. but the unbearable feeling ruins the whole trip like. I have to take a xanax to knock me out when I’m trying to sleep because the feeling in my ass is so uncomfortable. But the weird thing is, when I wake up like 10hrs later, I feel fine and don’t even need to shit. So my question is, why can i feel this shit in my ass on LSD, and not normally. sorry for the messy and rushed post.I hope we can get to the bottom of this maybe get the scientists involved and start an investigation

 Taken from r/LSD