Have you thought about getting tested for sleep apena? My BF had awful heartburn for years. Snore that could wake the dead and it drove me nuts. Then he got this machine that helps people with apnea breathe at night (he's not a fat f, his dad and brother and him all have messed up nasal passages and all three have these machines). He went from scarfing Zantec 75 two at a time to no heartburn meds for nine months. If you've got health insurance, they should cover it. Just a thought.