Fortunately I'm retired...my 80 hr weeks are over. BUT, I'm going through the same thing. I'm just plain exhausted. I've always been a night owl...but now, I hardly go to bed before 6-7 am. Sleep till about noon...and could sleep all day. Sometimes I take a little nap in the evening, but not often. We have a lot of dogs to care for (hubby is the morning shift), so I just can't ignore them. Getting into show season for them soon, and need to start the grooming NOW. I just don't have the energy. Also need to start spring cleaning...ummm...yep, will do that soon. I have about enough energy to do the basics, and that's it.
I was using a higher nic level (24) at certain times of the day until a week or so ago, but have backed it down to 18. I was a pack to a pack and a quarter smoker a day (Capri...which are ultra lights). I did find that if I vaped before bed, I couldn't go to sleep. I used to stop smoking about an hour before bed...was busy with bath, getting dog out, feeding cats, then bed. Never smoked upstairs at all. I think the vaping actually makes me not able to fall asleep as easily. And that's something I have to try. Just leave the pv downstairs like I used to with the pack of cigs. Hopefully that helps.
It sounds like the vaping is keeping me awake...versus making me tired. Nope. It's keeping me awake right before bed, and the dogs keep me awake the rest of the time. LOL I am SO dragging! During the day I could fall asleep at the kitchen table. I have zero energy to actually DO anything.
I've always been a 5-6 hr a day sleeper, so not much has changed there. But I used to have energy. Not anymore.