I have suffered from intestinal gas pains and pain that feels like its in my shoulders for years and I mean over 5 at the least. I've had an colonoscopy done and they can't find anything wrong. it also feels like i'm swallowing air a-lot but I can't help the urge to swallow. I pass horrible gas when it does come out and it's loud. It is really becoming a-lot of pain and aggravation how can I control this? Or is there something wrong that could be causing it? The only surgeries I have had are appendectomy over 10 years ago and 5 years ago I had a hysterectomy.