[Shawna]

Here’s another doctor on acid reflux (and heartburn) if interested. This is in humans but holds true for our pets too.

“The Myth About Heartburn
It’s commonly believed that heartburn is the result of overeating. And although 116 million Americans may overeat, the size of the meal has no scientific correlation with the frequency of heartburn.
Then we must be producing too much stomach acid, you say. Having too much acid production is very rare. In fact, the opposite is the case. In most people, stomach acid decreases with age.

What Causes Heartburn?
In order to cure acid reflux disease, you must remove the cause of the problem and promote the healing process. The following are the most common causes:

Food allergies: In my practice I have found that a majority of cases of heartburn are caused by food allergies. Food allergies often cause a host of other problems and can be diagnosed with a simple blood test.

Foods: certain foods cause the lower esophageal sphincter to relax, thus leading to heartburn. These include peppermint, coffee, alcohol and chocolate.

Hiatal hernia: This is a physical condition where part of the stomach protrudes through the diaphragm. It can generally be reduced without surgery, though even when present it is not necessarily the sole cause of heartburn

Low Acid Production: Ironically, low stomach acid levels can result in heartburn. This is much more common than increased acid. This problem can be assessed clinically and is readily treatable.

Medications: Many medications cause heartburn as a side-effect, including, several acid blockers. These include:

Acid Blockers: Prevacid, Prilosec, Zantac, etc.
Asthma inhalers (beclamethasone, flovent, etc).
Corticosteroids
Nonsteroidal anti-inflammatory medications (NSAIDs), such as aspirin, ibuprofen, and naproxen.
Antianxiety medications, such as diazepam (Valium) and lorazepam (Ativan).
Osteoporosis drugs such as alendronate (Fosamax).” http://www.centerforfoodallergies.com/gerd.htm#part1