GERD and Dizziness

Hi,
I have have a number of symptoms and don't know where to turn to next. Am hoping to get some help on what to do.
Issues started approx 1year ago after my father was diagnosed with cancer (my mother passed away 1 year prior to Dad's diagnosis).
- started getting upper stomach pains (more like a churning sensation) and nausea.
- lost appetite and a lot of weight
- had an endoscopy found h.pylori
- took anitibiotics felt a little better
- nausea came back. GP prescibed nexium as report showed MINOR chronic reflux
- nexium worked for a little while. symptoms returned.
- I stopped all medication and tried to manage naturally.
- Symptoms come and go - not related to any food.
- I also have a consistently sore throat, it feels fuzzy and inflamed.
- My back always aches
- When I get these episodes I feel fatigued.
- Also feel dizzy and off balance, especially when walking. I feel unco-ordinated. I feel like pressure builds up behind the eyes to the top of my head.
- I get pain under the ribs and a burningtight sensation in the chest areabreastbone.
- I feel nauseous and lose my appetite.
- I also get palipationsflutters up to the throat that sometimes make me breathless or cough.
- I have mucus that I need to 'huck' out through the throat (sorry to be gross)

Sorry to be a basketcase, but can you suggest anything.

Regards