I'd recommend trading some of the fruit and yogurt for starchy root vegetables. It seems like most people who feel "blah" with typical primal recommendations feel better with a higher starch intake. And if you don't have that much weight to lose (or any at all), you will definitely benefit from increased starch. Just avoid the temptation to eat gluten grains.
Also, exactly how much protein and vegetables are you eating? Sorry, but it seems to me that every time a thread like this pops up, the OP is eating mostly nuts, yogurt, and fruit, with not nearly enough protein. That may be another thing you want to increase.
edit: didn't notice you said you want to gain weight. Then definitely eat more starch. You could easily eat 400g or more of carbohydrate and be fine, just make sure it's the right kind.
Starchy tubers and root vegetables > pseudograins > properly prepared pulses > non-gluten grains > fruit
Last edited by Chaohinon; 08-21-2011 at 10:55 PM.
“The whole concept of a macronutrient, like that of a calorie, is determining our language game in such a way that the conversation is not making sense." - Dr. Kurt Harris