Annie,
You'll be fine, believe me. As a "veteran" of the "beloved" colonoscopy procedure, let me assure you that the actual medical test is nothing to sweat about. In fact, the doctors will be you giving that same medicine that Michael Jackson's doctor used to give him to sleep every night. My doctor told me that I wouldn't even be aware of going off to dreamland once they injected the medicine into me.
And, he was absolutely correct; I just remembered waking up after the roughly 20 minute procedure. You literally have no recollection at all of going off to sleep. After a few minutes, the nurses will give you something like orange juice and crackers or pretzels, since you have not eaten anything solid (except for possibly jello and broth) since probably eight o'clock the previous evening (tonight).
The only unpleasant aspect of the test is the medicine your doctor probably gave you to drink tonight. I was supposed to drink two bottles of the stuff combined with a lot of water. The stuff was so unpleasant that I was only able to make it through one bottle of the awful stuff, and my test still went perfectly. My own family physician related to me that even he was able to make it through only one bottle of that stuff when he had his colonoscopy.
One suggestion on how to drink that liquid is to use a straw so that you do not get the total "flavor" of the stuff. Yuch! (Don't expect to get too much sleep tonight. You'll probably be making frequent trips to the "water closet.")
One you get home tomorrow, you'll probably want to chow down heavily. I know that I really pigged out after coming home from the procedure: pizza, sandwiches, apples, cake, ice cream, you name it. You'll probably be even hungrier than Prof. T. Elliott Stokes was after one of his famous three hour lectures at his university.
You'll be fine tomorrow.
Take care, your Dark Shadows buddy/cousin,
Bob
PS You used to be able to drive yourself to and from the test, but today the doctors arrange to have you driven to and back home from the test if you do not have someone to drive you there and back. It's because that so-called "Michael Jackson medicine" will leave you just a bit woozy after the test and they don't want you driving on the day of the test. Relax and enjoy the ride!