Wydenes,
Your dairy issues could be from lactose (milk sugar), from casein (milk protein), or from both. You might want to try goat dairy, as the protein molecules are smaller (more like human milk), and therefore are easier to digest. I suggest staying away from soy milk because it is very high in estrogen, and that creates burdens the body doesn't need. The reason Asians are so healthy is because of the sea vegetables they eat--these are high in selenium, and they absorb toxins like radiation and metals.
Best wishes!