Dear Aparna, I'm so sorry to hear that you felt nauseous. It can be a common effect of the yoga practice, especially in the beginning. The twisting and bending can speed up the process of elimination, and queasiness is sometimes a result. We recommend practicing on an emptier stomach and drinking water throughout the day to help the body flush. Sometimes this practice, the blanket bolster can help. http://www.yogaanytime.com/class-vi ew/644/video/Yoga-Relaxing-the-Bell y-by-Heidi-Fokine Please keep me posted. xoA