I had an upper endoscopy and a gastric emptying study, neither showed anything for me but they could show something. Now I'm working on getting esophageal manometry and ph impedance approved by insurance

Rn I'm on zofran to manage nausea and it's really helpful while we figure out the cause, it's not a cure but it lets me keep food down. There are other anti nausea meds too but zofran is best for me personally.

I'd say work with a gi and keep searching, if one gi gives up ask for a referral to another

I also had an endoscopy as well! After they did those they didn’t even contact me to set up anymore appointments they just sent me my results through email.