I got my brother to start trying paleo , he had throat cancer treatment (3 chemos, 35 radiatons) summer of 2011. He was going pretty good primal for about 2 months. He started doing some hard work outside and complained of being weak and dizzy. He went to docs whom he told about primal and they told him to go back to breads etc.... Now he thinks I am full of ..... and so on. Anybody had this experience?