Hi Mammakin: Just came in for a break from gardening and to rehydrate. It's hot today! anyway, to answer your question, I think I took it for about 4 and a half years and that was maybe 5 years ago. I do remember some sweats too and the shakes, trembly feeling, but that passed. And my dreams were more vivid, not scary or anything like that, just colourful and detailed. Or perhaps it's that we remember them more.