Kix,I suspect you are right and what often happens the Drs. are not always intune with all of the side effects that the medications can cause. Here is an article that may help you:
http://ambiensideeffects.info/can-ambien-cause-serious-stomach-injury/
After reading this info I think you will see there are many people that have used this medication and experienced what you are going through.
Keep on being your own best advocate.
Kindly,
Kitt