Ear pain and sinus involvement can occur as symptoms of GERD though very rare.
A course of PPI ( prilosec) may be tried foir relif.
GERD can be confirmed with 24 hours pH monitoring test.
I started on some generic omeprazole today - bought a box of 14 of 20 mg delay release tablets. I was told I could also take famotidine. I will see what happens over the next week or so . No referral to a GI doc yet for 24 hour pH testing.