Not sure if theres a big and dandy flashback's thread, I didn't see one though, I've been taking LSD quite regularly over the past five months or so, and in that time I've had what I would consider to be three proper flashbacks while sleeping.
Im not sure what caused it this time though it wasn't a remotly pleasant experiance. Has anyone had anything similar to this, with certain flashing lights or repeating sounds triggering flashbacks? Im thinking something in my room must have again triggered it, im not sure what yet though but I have a feeling it was some kind of sharp electric sound possibly the feedback sound of a phone near speakers or some such as I kept hearing similar kind of electric sounds which combined with the other things going on seemed quite frightening.