I bought a juicer, did it for a week- just juice- and then I had a pretty severe meltdown, mentally. I forgot that I don't function without meat. YMMV. I have used it since then, though, as a supplement to my regular diet.
If you're having a bad time with the carb flu, think more salad/sweet potato/squash instead of mostly meat. You don't have to go super low carb in order to reduce your carb intake (and increase your nutrient intake).