I've been recently experiencing pain in my upper right back/shoulder area, along with problems swallowing and burping. I've always been a gassy person. I've also started having bloating, abdominal pain, and significant weight loss in the last couple of months. What could be causing all this?
All of the things you are listing as issues are reasons to see your doctor soon. I'm unsure if the weight loss is intentional or not but if it was not then that's even more concern. Any time you're experiencing sudden onset symptoms like this, particularly with weight loss that's unexplained, you should see a doctor right away. The earlier some conditions are treated the better!
Here are some links that might be useful to you right now:
7 Symptoms of Acid Reflux
Understanding Acid Reflux: A Doctor Q&A
Acid Reflux Summer Food Swaps
Best of luck - Stephanie