Endoscopy worries

Hi,

I am due my first Endoscopy next Monday. I went to the Dr for a med review and mentioned I have being suffering from Heartburn for several years. He said I have no red flags but thought an Endoscopy would be advisable.  I admit to drinking los of diet pepsi in the past but now have cut them out along with caffeine coffee. The heartburn has almost gone however i am now in panic mode about the results of the test. Infacr i worked from home last week because of daily panic attacks. I already take 37.5gm of Venaflaxine for my nerves.