I wonder if it's in part due to being omad right now? The balance/control of insulin from the Heller's plans comes in 1) not eating more often than every 90 minutes, 2) being done eating within 60 minutes (you get a second wave of insulin release at 70 minutes), and the balance of the rm is to control the amount of carbs your body is processing (my interpretation). If you are only doing omad and it's a meal not well balanced as per calp (which I prefer as it was the result of further research they did), I wonder if that was enough for this carbo-fog?