Percy,
I'm so sorry to read you suffer from GERD.Bless your Heart!I read that GERD and upper IBS causes symptoms of SOB and bloating.I haven't been diagnosed with either Digestive Disorders,but was told by a previous Doctor in the 90's I have Gastritis which is an inflammation of the lining of the Stomach.I do experience this sense of suffocating and a heaviness feeling when I have upper Abdominal Gas.I don't look bloated..I only feel bloated..I'm going to mention to my Doctor at my October 6 Appointment.
It scares me because I worry about something major like CHF,some other Pulmonary Disease or Digestive ailment.It puts my Health Anxiety into overdrive!
Thank you for your positive reply.It made me feel LOTS better!