Sorry it's taken a little while to get back to you on this.
I think that you definitely should be seen again by your physician. Many people with reflux will be able to keep their symptoms in check with nexium and lifestyle modifications (diet changes, avoiding foods 3 hours before bed, avoiding alcohol, tobacco, etc.). There are some, however, who will develop worsening symptoms and this can be due to severe reflux or it can be due to complications that can occur with reflux. The reflux of acid can lead to erosion within the esophagus, ulceration, bleeding, among other changes, and these require a different treatment just besides medications and lifestyle therapies.
So you could respond to an increase in your medication (depending on your current dosage, or a change in medications, but nexium is generally pretty effective compared to most other meds), but you might also require an evaluation for these potential complications. Since you are so symptomatic right now, and things haven't quieted down on their own since your return, you should probably be seen again to have this worked up. Your physician might want to perform upper endoscopy (to visualize your upper GI tract), and this might provide some more clues. A medication adjustment might be the first step, to see if that helps. But at 1 1/2 weeks, your symptoms probably won't just resolve on their own at this point.
I hope this helps. Please let me know if you have any further questions - I'm more than happy to help. Take care.
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