i tryed acid for the first time a year ago or so..it was pretty intense...so i did it a few times after that..never had any problems..but the last time i did it was about a month or two ago at the end of a moe. show and i ended up having a bad trip one of the worst experiences i have ever had with psychedelics...but anyhow it was really weird like a few weeks ago i think i had a flash back like i did'nt have the same experience or anything but yea i was driving in my car and i like looked behind me and my back cracked and the sky started morphing and shit and it was like that for like 5 minutes
Well, if you have an acid flashback, it's NOT due to any acid or any kind of chemical still residing anywhere in your body. It's completely mental; ideally, a person can take acid once and then have a complete recall of that experience whenever they want (without having to dose again) for however long they want. That, of course, is the ideal; many people can't even get a flashback if they try. But it all has to do with your brain's memory of the trip; those "deja vu" kind of things can spur your brain into a flashback, but only if you let it or aren't prepared to stop that from happening.