Hello, I was curious if anyone else experiences the anxiety of the come-up on a psychedelic long after quitting drug use. It seems like once in a while I start feeling the setting-in of something like LSD even though I'm sober. I wasn't sure if this was apart of HPPD or if this was something unique to me since I had existing anxiety problems before I took drugs. Does anyone else have this happen to them? Like you can be doing something normal and all of a sudden start to feel like the acid is setting in or something. Thoughts?