Heartburn, nausea, stomach rumbling loudly & painfully, bloating, emptyness, acidic noises from stomach, burning sensation in stomach, sleep trouble?

See doctor. Any gastrointestinal issues involving bloating, rumbling sounds, acidic taste, or issues related to the gut needs to be evaluated further by a PCP. S/he can do a physical abdominal examination and let you know what the probable cause could be. It might be inflammatory, infectious, dietary, or food allergy related in nature. This cannot be determined without further history.