Just found this thread when I googled "vaping hangover". I think I have one right now, fuzzy head, cotton mouth, nauseous. I don't even want to look at my pv.
My hubby left yesterday afternoon to spend the night and today at my son's beach camp. I never get an overnight alone, so I got some snacks and watched TV until 3 a.m. while filling an order for my jewelry business. I vaped quite steadily, like I usually do, but never until 3 a.m. I had some new flavors to try that came in yesterday. I vape low nic, around 8-12mg. No alcohol at all.
I am drinking lots of water and not vaping this morning. And I still have more of those new flavors to try...maybe not today.