I've had chronic heartburn for a number of years and its been easily resolved by over the counter antacids. But recently over the past few weeks the heartburn has become more intense and frequent. Everytime I lay down, everything I eat and drink gives me heartburn. I've also began experiencing nausea after each meal. Ill get hungry but have to stop eating due to nausea. I constantly feel nauseous and its effecting my life. I'm not pregnant and I have no other health problems that I know of, please help.