Welcome to the community Meka. You have come to the right place as there are many here who can help you with your questions. I myself have GERD and LPR symptoms and have been trying to heal my body naturally in hopes that I will be restored back to normal again one day. If you would like to read about my journey it is located here (http://www.healingwell.com/community/default.aspx?f=45&m=2861754). It sounds to me like you may have motility problems as well as your GERD and hiatal hernia. There are tests that you can have done to test for motility. You can also have a weakened LES that can result in food coming back up if it is not working properly. I have read that you can have your hiatal hernia fixed and have had my chiropractor adjust me for this. Whether it actually works or not, I don't know as I haven't been tested for a hiatal hernia. There are many different supplements that claim to help with GERD, but different people have different experiences. I have been going down that route for the past 7 1/2 weeks myself after getting off PPI medications. In the beginning after being off my PPI's, I experienced chest pain, but not shortness of breath. I have read other's experiences and can relate to how you must feel. Other's within this community have done different types of surgeries with success so depending on which type of care you'd like to go towards, there are plenty of people here who are willing to help.
I wish you luck on finding something that works for you to help lessen and eventually resolve these problems. The road may be longer than expected, but it does take time for the body to heal.