Hi blistering Fate,
It's funny how you say 'carbs saved your ass', with me it was protein. I was withering away down to nothing on a HIGH carb, veggie diet. I think that diet sent me on a downward spiral as far as my health. I started added in protein, yes animal protein and I gained about 6-7 pounds quickly.
So much depends on your body type. We are all so different and the key is finding what works for you. Glad you are doing better in that regard.