 [ Symptoms ] my 65 year old father needs gallbladder surgery we need a second opinion [ Disease ] your abdomen is distended with gases and it gets relieved by sleeping …as the capacity of your intrabdominal increases while sleeping but this causes chest pressure and pain… that could be an ibs… stop taking caffeine soda fatty foods… eat fibers drink water …relaxation and yoga would help…as well as walking helps the intestinal peristalsis…