Is it acid reflux? Can my band tighten without having a fill?

Quick question folks: a couple days this past week i was having the most intense pains in the center of my chest. Now when I was banded 3 weeks ago, an EGD was done and apparently I had a hiatal hernia which was repaired at the same time. I had never had symptoms of a hiatal hernia such as acid reflux but it was suggested when i called my surgeon's office that acid reflux was the cause of my pain. I am still on mushy foods and will be able to eat normally as of wednesday. On another note, I don't have my first fill until August 24th, but I've been eating a lot less/been a lot less hungry the last few days or even close to a week...the combination of the two just makes me nervous like something's going on in there that i don't know about. The doctor prescribed something for the chest pain which has helped a lot but annoying b/c i have to take it 4 times a day for a month.

On a much happier note, finally seeing the numbers drop on the scale! 11lbs as of today.