Rough. Very rough. Had to take a diphenhydramine at 2.30am and that bought me about 3.5 hours of some kind of sleep, but woke up just after 6am with truly terrible cholinergic rebound. Heart rate was 55 during the perceived sleep stage, then went all over the place when I woke up - I honestly thought I was dying and felt so trapped as I thought I'd need to go to the hospital but also didn't know how I was going to explain it all and didn't think they could do anything anyway. Kept telling myself it was just imbalances working themselves out. I forced myself to lie in bed and maybe dozed between 7-8am, then just tossed and turned unable to get comfortable for another couple of hours, forcing myself to at least stay horizontal as long as possible. Trying to ease into today somehow. At least I just have 2 meetings at the office so will just try to get myself there, get through those, and the rest of the day, one thing at a time. The rest of the week, I will think about later.