Anxiety vs Acid

26 year old, used to be healthy, male.

Over the last few months I have been hit with what seems to be severe Acid Reflux mixed with a constant fuzzy headedness, backpain, and heavy anxiety. I have lost over 40 pounds from 180. I have been to my doctor who put me on Previcid and Vitamin B12. The problems continued and I made an appointment with a Gastro doctor. I had a endoscopy that showed esophagitis and was given more acid reducers and Vitamin D suppliments. It has been 2 weeks and I'm right back where I started with my original symptoms. The fuzzy headedness is a big problem as I feel I cannot safely drive with it and have been out of work for 2 weeks.

Any help with this would be wonderful. I would just like to go back to my normal life. Thanks.