I'm really sorry to hear that. Feeling spacey and hungry are common complaints among those who have tried the diet. You may have already experimented with the following, but maybe one of these might help:I am having similar problems every time I introduce meat back in I also drop my metabolism and gain weight and feel bad, I just feel like meat directly lowers my metabolic rate and I just feel wrong every time, but yet when I go basically fruitarian even though my metabolism seems improved I also get a bit spacey and hungry. But what I do know, is its probably time to go on another week or so protein/fat fast. I just tried again this week to play with meat intake and as-per-usual it just makes me feel horrible. This week has been my worst waking temps in a long time.
I know you were wanting to avoid the 4 horsemen but how are you with eggs? If they don't affect you negatively, they might help prevent that spacey feeling while providing you highly bioavailable protein so that less is needed?
Or do you like mushrooms? I make a mushroom broth that makes me sweat. lol I simmer different varieties such as white button and shiitake (is an excellent source of selenium for the thyroid) with herbs, black pepper and sea salt.
There are also heartier fruits like winter squash — kabocha is my favorite but spaghetti is probably the best tolerated. They may provide enough starch to satisfy you without causing issues sometimes experienced with starchier foods.
I used to make a soup that was pretty grounding from celery, carrots (white, yellow and purple), zucchini, sweet corn, heirloom tomatoes, sugar snap peas, baby spinach, sweet onions, garlic, dill, parsley, orange zest, pepper and salt.