Circ, not sure what's going on, but my first thought- not enough fat. If I accidentally get my carb load too high- same thing happens here. I wake up in the middle of the night STARVING. It's only happened a few times for me, but I totally get you on that. I struggle with keeping weight on too. I'm around 127, 5' 9". We have the same metabolism
Ah Skibike, you forgot the fat, around 65% of my calories. I eat at least one avocado a day, one tbsp or less of grass fed butter or coconut oil for cooking & lots and lots of EVOO. I'm very satiated, but do work on keeping enough calories on board. You'd be amazed at how many non-starchy veg comprise 75 carbs
