I am 21. My weight is 52 kg. I want to be of 72 kg. I hit gym daily for 1 hour. I want to develop muscles. I take milk, curd,yogurt, cheese, buttermilk daily. Besides that I eat peanut butter, badampak,oats, dark chocolate,malt. I eat walnut, cashew.In fruits, I eat cheeks, papaya, banana and coconut water. I eat all these up to 5 days without any problems but after 5 days I feel my stomach is so upset. feel bloated. After that I started to feel muscleache in my entire body. It takes 3-4 days to be alright. What is this, I don't understand. In this way ,i can't build my body. But I always think I must build muscular body. But how can I make muscular body in 6-8 months without feeling any sick. How can I take care my stomach in these days. Is there any way?