Do you check your blood sugar when this happens? Sounds like you may be running it a bit low.
Isn't it normal to "fail" when you go for more than 6 hours without food? Seriously, 6 hours? I feel weak, dizzy and malcoordinated if I go more than 3. Sometimes crash in under 3 hours if I'm moving around a lot.
Days 3 to 5 -- Watch out for 'Carb Crash”'
There is a phenomenon that happens to some people after a few days on a very low-carb diet. I call it carb crash. The theory is that it happens when your body’s glucose reserves (stored in the liver as glycogen) are used up, but your body is not yet used to running on fat and protein. People tend to have symptoms such as feeling shaky or jittery, feeling irritable, feeling fatigued, or just not feeling “right." Although it would go away in a few days, Dr. Atkins didn’t feel people should just put up with this, and neither do I, especially when the cure is so easy -- simply add some high-quality carbs to your diet.
So if you feel shaky, fatigued, or otherwise unusually bad, try eating a serving of low-carb fruit. If this makes the feeling go away, you know you are in carb crash. I suggest you modify your plan for the next few days to include a bit more carbohydrate, and monitor your reactions closely. (Don’t start to “carbo-load," which will be self-defeating in the long run.)
*************I tell you what People underestimate the value of greens , herbs and spices . That piece of parsley on a persons breakfast plate .I eat it. Flowers too . Essential trace elements to be had here is what I believe . Me Grandma she knew what ones to pick out of the natural wild fields . Things that looked like weeds to us were food to her and her generation . Now my Wife's Mother she would drive for miles looking for a certain type of red dirt and when she found it she would eat it for the iron content. That was strange to Me , but I guess they didn't have store bought vitamins or could not afford to buy them if they were available. Eating red dirt !! Can you imagine ?
...low body fat (I'm under 16% too, for a female, that's pretty extreme..
I suspect that you need to bump the amount of complex carbohydrates in your body to maintain your glycogen reserves. Many of the runners I know pay very close attention to their carb intake for just this purpose. If you are having this problem on an ongoing basis, you should consider strength - building exercise to build muscle tissue and the accompanying intramuscular glycogen storage (will keep your body fat percentage low, but give you additional energy reserves) and make sure to keep enough carbs in your diet to maintain those reserves.
It would not be very funny if you hit one of your lows while piloting a motor vehicle or some such.
I asked about the blood sugar because low blood sugar can be caused by other conditions than merely being skinny. I have a friend who found out he was type 1 ("childhood") diabetic in his 30's. Boy was he surprised when he woke up in the hospital after going down to insulin shock!
I can go maybe 12 - 14 hours before I hit that wall, but I am older, male, athletic and eat a well - balanced diet on a very regular schedule. I also watch my blood sugar like a hawk watching a mouse.![]()
I suspect your low sugarness has to do with your metabolism though. I would hate to be you during a famine. Though, I'm sure you'd have no problems with magicking food supplies, even if it involved cannibalism.
It would not be very funny if you hit one of your lows while piloting a motor vehicle or some such.
I kept making stupid mistakes. Then I realized I could barely even have a thought, and that I was freakin' hungry. I made some excuse, got up, had some food, and I was good again.