I was diagnosed with acute esophagitis earlier in year and it went away and i think its coming back, i feel heartburn, nose congested, and when i lay down face up i feel uncomfortable, should i go check again or should i just change my eating habits?

Heartburn & PND: Agree that you should avoid cheese, chocolate, caffeine, alcohol, spicy and fried foods and go back to see your doctor. You can also try using Netipot for your nasal congestion daily for few months. It may make a difference if post nasal drip is contributing to your symptoms.

Both: Check back with your doc and change your eating habits. If overweight, weight loss becomes critical as otherwise the reflux will continue driven by pressure gradient. Nasal congestion would not be typical of reflux and other causes for your symptoms will have to be considered.