Night reflux/night cough 6 years after getting gastric band. Is it worth emptying and trying again?

I’ve had my gastric band for 6 years and in the last 3 i started having heartburn and night coughs . I’ve had a X-ray and no issues were found. What I don’t understand is I can g with no problems, no night cough no heartburn then suddenly I’ll have it for days at a time … can’t sleep for 2 nights because cant Lay down or sit up to sleep. - night cough just horrendous! Would It be worth emptying and trying again? I feel like I’m justputting up with the issue and it’s probably bad. I’m so fed up