oh man, I feel for you! Nausea is my nightmare. I can handle any type of respiratory issue, fever, body ache but throw in nausea, I'm done. So miserable!! I do think acid reflux can cause nausea. This is also strange but I had a duodenal ulcer which also caused pretty constant nausea. It was the last thing we did to find it after lots of testing but the endoscopy showed it. Drank a chalk liquid and was better after 48 hours when it had been literal months of discomfort. So, keep asking questions! That issue with my bowel/intestines is known to cause long term nausea. just a thought. (but hoping the acid reflux med helps). My ulcer was caused by bile backing up in the intestines. I never had that treated and was told stress likely caused it to happen for a bit. I've never had a problem since. Gastroperesis is something they can treat. I don't know when/if they will but they make anti nausea medications that might help you.