For the past two month if I eat or even drink water I get extremely nauseous. It's an all day things. I feel very weak. it seems like the more the days go by it gets worse and worse. I get very constipatedsometimes, if I can use the bathroom it's not much. I have tried taking gas x and acid reducer but that doesn't help. I take a fiber supplement everyday and that doesn't help. Does anyone know what this could be? Is it something I should go to the doctor about?