Welcome to healingwell!
There's alot of experience here and others are going to come along and add to my list.
1. Taking the medication like nexium helps with the tightness.
2. The main thing is to take small bites and chew, chew, chew.
3. Try to relax, stress can cause your symptoms to become worst.
4. You need to see a GI for some tests. An ENT doesn't know everything about GERD that a GI knows.
Tests needed: Baruim swallow, BRAVO, Endoscope, and manometry.