Need Help Please! Any advice would be appreciated.

Hello,
I am a new user to this board, and for the longest time I thought I was alone suffering through GERD problems. I can't believe how much pain I am in sometimes and I feel I have recently took a turn for the worst. I would like to know if anyone else is out there that has had a similar experience. I will try to keep this as short as I can as I explain my symptoms.

2 years ago : This is when I can remember my first symptoms of feeling (how I would describe) "different". I started having reactions to caffeine in any amount. Chest pain, racing heart rate. Also, alcohol would destroy me, I'd be out of it completely the next day. When I went to bed, I would wake up with a sensation that I didn't breathe through out the night. Chest pain came on and off. One day, it became so unbearable that I thought I was having a heart attack. I got an ekg done and they said there was nothing going on and it was all in my head. This made me feel insane.

1 year ago: Along with the symptoms already mentioned above, my acid reflux started. I would regurgitate food into my mouth and have to spit it out routinely. I started the fire academy around this time and I knew I wasn't going to make it through if I didn't get some help quick. I was prescribed dexilant at 60 mg per day and this really relieved symptoms after taking it for a month! I finished the bottle and symptoms eventually came back after 3 months. I kept taking dexilant for the last 5 months and the pain has come and gone.

June 2015 Endoscopy: The pain has gotten so bad I decided I pretty much need to stop my life in order to figure this out. I couldn't go on pretending I was ok when I was in pain every day. I had an endoscopy done and they found a 3 cm hiatal hernia and esophagitis. The gastrologist gave me metoclopramide and that actually helped me eat full meals for about 3 weeks. Although the side effects of that drug can be so bad that I couldn't take it for too long.

July 2015 Manometry: My manometry results showed my lower esophageal sphincter doesn't close after I swallow, which causes food to slide back up into the esophagus. I figured the Nissan fundoplication could correct this but my doctor insisted I was not a good candidate for the surgery. He's not a surgeon himself and I hear gastrologists always say not to get the surgery. In my mind, the only thing we have found is a hiatal hernia and that my LES doesn't close. My doctor said it's not the hiatal hernia causing this, yet he doesn't have any other answer. He's pretty much written me off and told me he cannot help me. I have an appointment with a surgeon in a couple of weeks to see if I can get some help. I'm also getting a test done for gastroparesis to rule that out.

Recently, I switched from metoclopramide to domperidone and its been 4 days and no relief. Barely anything has gone down and I haven't eaten anything today. So here are my questions.

1. Can anyone identify with my situation? hiatal hernia around 3cm? Esophagus not closing? etc

2. Has anyone been on domperidone and does it take awhile to kick in and start working?

3. Any advice at all would be great!

Thank you Tony G. I'm seeing a surgeon in two weeks which was the first appointment available. I feel like I can't make that date as today was the first day I wasn't able to eat anything at all. Not watermelon, not even an ensure shake stayed down. Have you ever had a day like this or anyone else went a couple days without eating. I'm terrified right now about it.