Rebecca, welcome. We'll help you as much as we can! I too, had atypical symptoms, but symptoms aren't the driving force here; it's the results on the testing that are more telling. Have you had a barium swallow, a 24 hour ph or a bravo?, a manometry? These are all important indicators on the function of the lower esophageal sphincter.
Are you now on a PPI? if not, contact your Dr., they should be able to prescribe something over the phone.
My initial thought, though, when I read your post, was find yourself a new Doctor! You do not deserve to be treated this way! What area of the country do you live in? I had my surgery done at Cleveland Clinic and I was treated with a great deal a respect and consideration, but they do want to do their own testing. You say you are going to school, which University?, is there a medical school and university hospital affiliated with it?
You will find that most of us have been dealing with chronic illness for many years, and one thing that we have all learned is that there is always hope! You say this was your one chance, I'm willing to bet that it isn't, you just have to find the right doctor to make you better.
The children will be okay, they're worried about their Mom. If you have a family practice Dr. you need to make an appointment with him/her and speak with them about finding a new GI DR and about helping you with your depression. You need to do this for your family, but more importantly, for yourself!