The worst part of the procedure for me was waiting for it to be done. I think you may have the same feeling when it is over. The test itself is something you won't even remember. You will simply 'take a nap' and wake up and go home and start your gluten free life. With positive blood tests you know you need the diet no matter what the biopsy results are as the tests can have false negatives but not false positives.
Try not to worry and hopefully you will recover soon but things can be up and down at first on the diet. Ask any questions you need to ask.
The endoscopy was a total breeze. I was OUT like a light and don't remember a thing. The doctor said that he did not see any obvious damage but will know more once the samples are looked at. He did says that, based on my blood work, he feels stronly that this is celiac and I should remove gluten. This doctor was great. He said his dad has celiac and this makes me think that he is more aware than others (like every other doctor I have ever had). I feel lucky to have found him and my PCP. For my entire adult life my doctors have told me that I am stressed and depressed and need to be medicated. Every symptom I have was blamed on depression. I started saying no to medication years ago because it never really helped. I finally found a doctor that listens and here we are. There are good ones out there, you just have to keep looking!