I had mango shake on night and due to that I had a loose bowel movement but only for one time. After 2 -3 days my stomach was visibly bigger and still is and also I had uneasiness in the pit of my stomach for few days. I feel gassy and I also fart quite frequently. I feel a sudden bloating/ weight gain/ swelling in my upper abdominal Also, I have started drinking water on empty stomach without even brushing my teeth. Initially I had good bowel movements but It has somewhat lacking now. What could be the reason of bloating or swelling in the stomach area and how do I cure it.