I'm 7 months pregnant. I am currently suffering from what seems to be post nasal drip-page. On the other hand, the past few days I have been having difficulty eating. Every time I eat, I feel as if it burns. I have stopped drinking coffee and mostly started drinking water. I notice as well when I drink soda, it burns as well. I also feel a tightness in the middle of my throat. Sleeping is fine but eating is troublesome. I do have a history of previous acid reflux, sphincter of oddi dysfunction that was corrected, and severe allergies.