As a person who also lives a stressful life, I can say that it often takes more than a weekend to recover. You have a lot of stress and you are very busy - I can see that even if you are eating perfectly, you could find yourself with periods of exhaustion that take awhile to bounce out of.
I have also been wondering if we, as VLCers, need to be extra vigilant to get in our vitamins and minerals. Not just through muscle meats and fats, but through organ meats and bone broths. I have nothing to back this us, but seems to me we need those nutrients somewhere. I also have no clue, assuming this is anywhere on point, about what the proper ratios of these other foods are.
Wish I could be more help. Get to feeling better soon!