Hi, may I answer your health queries right now ? Please type your query here...hello, first of all thank you , i am mirzo now i am working in south korea and my work is to load sacks with 20 kg, when i am working i feel pain from my back and after the work i feel the same pain especially on the right side of the back when i sit down and bend over, some my friends say that it depends on the kidneys, please help me about it , what must i do , can i continue my work?