Achy, sore, cloudy headed, and tired...then again, probably because I'm overdoing it by doing excessive HWC in my coffee and a ton of cheese in my meals
No fun. I seem to do alright with dairy, but I definitely notice that I don't feel quite as good (less energy and mental clarity) when the dairy consumption climbs too high. I think most people generally do better with cultured dairy (cheese, yoghurt) than with the "straight from the cow" stuff like milk and cream. I've heard of some people doing well on unpasteurized, non-homogenized milk, but never tried it myself.
Is there any particular reason you're hitting the dairy hard, or do you just like it?
What's your experience been around caffeine and coffee?
I drink coffee pretty regularly, but mostly because I like the taste. I don't miss it if I don't have it, unless I did something unwise the night before that messed with my sleep. I'm currently checking to see how much of an increase in blood pressure it causes me, and if it's causing as much of a jump as I think it might be, I'll dial it back a bit more. No reason to be hypertensive for a third of the day just for a tasty drink.
I see coffee as a useful tool and a nice treat, but it seems like dependence on it usually indicates an underlying issue. I see two potential issues for you:
1) Sleep. You get up in time to train at 5. When do you fall asleep (not go to bed, but actually fall asleep)? If the answer isn't 9 pm or earlier, you're probably setting yourself up for failure. Poor sleep leads to inappropriately high doses of caffeine, which leads to poor sleep, and on and on and on.
2) Fasting. If you can't fast fairly comfortably without caffeine, your body is trying to tell you something. Personally (and this is just my anecdote, so take it with a grain of salt) I had to take a break from IF when I started carnivore. I had been enjoying it for 3 years at that point, but once I made the switch I started getting
hungry. So I ate. Three meals a day. Turns out, with all the extra animal protein (I assume), my body had decided that it wanted to get bigger. After a few months without much fasting, and stabilizing with an extra 7 or 8 pounds of lean mass, I went back to 2 meals a day. I know IF is super convenient, but it might be worth your time to shorten your fasting window, and pack some boiled eggs, cold steak, etc to work with you for a mid-morning or mid-day meal.
So my first and biggest suggestion would be to work on fixing your sleep. Even if you have to get blue light blocking glasses for before bed, an eye mask and ear plugs for sleeping, and tape tin foil over your bedroom windows, you need to be getting 7-9 hours of sleep per night. For now, probably closer to 9 or 10 hours, since you're likely in some sleep debt.
The next thing would be to cook extra food at dinner time, pack it to work, and add a mid-day meal. Eat it when you get hungry, whenever that is.
The bummer is that, in order to get good sleep, you'll have to stop drinking as much coffee. Limit yourself to 2-3 cups, and
no coffee later than 8 am. That means the first few days are going to suck. Hard. Once you're getting more sleep and food (and cut back on the dairy), I can almost guarantee you that you will feel amazing.
Hope that helps!