What are you eating? High carb foods (sugary stuff, bread, pasta, potatoes, rice, fruit, etc.) tend to make you want more of them. It's not just in your head, but a biochemical thing (they screw up your insulin and bloodsugar levels). And you need B-12 shots huh? Are you a vegetarian? Meat, eggs, and dairy in sufficient quantities should provide you with adequate B-12.
Alan
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The tragedy of science is the slaying of a beautiful hypothesis by an ugly fact. T H Huxley
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