I Finished My Medication For My GERD Actually My Stomach

i finished my medication for my GERD actually my stomach lining was too red that causes my reflux I just take Omeprazole for 60 days and antacid for 30 days. I feel the improvement as I can now eat more often but I still feel some bloatness and sometimes a feeling of a needle sharp thing in my navel. I had undergo a lot of Blood test, ultra sound and endoscopy and all results are ok and my doctors and husband think I am overthinking and always paranoid. what test should i take for me to be at ease and how can i gain weight inspite of my condition. I still cant eat a lot of meat as Im afraid my stomach will get upset I also remove all DAIRY from my diet eversince I was diagnosed with GERD