I have a question for Heroin users. I was a heroin addict from 2008-2010 so I don’t think fentanyl or it’s ananlouges were as prevelant back than. A few times I would somewhat blackout and was wondering why this occurred. I would shoot up feel the rush and about 5-10 minutes later I would wake up with my head on the table or steering wheel where ever I was sitting. confused feeling like a lot of time had passed but it was only about 15 minutes I’d shake it off and be fine. It didn’t feel like a regular nod really because usually when I nod I still hear whats going on around me and my head will usually pop back up before it touches the table. What was this it usually only happened at night.