Chest pain for ongoing 8 months!!

It's good to check out possible heart problems as you will do with ekg, since it's always possible that it's a cardiac issue. However, if you have GI issues the chest pain could stem from that. I consulted Dr. Google and it said that gastritis can cause chest pains. I have chest pains a lot, and I have GERD and a hiatal hernia. What I eat and how I sit/sleep affects whether I have chest pains. Maybe keep a diary of when you get the chest pains, and note the food you've been eating and whether you were moving, sitting or lying down. I often change my sitting position to relieve chest pains. I also sleep sitting up to avoid chest pains. I also feel better when I eat a low acid, whole food diet. I don't know if that's recommended for gastritis, or if another diet is. Also many people find deep breathing exercises helpful to calm the vagus nerve, which can cause pain when irritated. Do they check you for h. pylori, a bacteria that can cause GI issues? Did they find evidence of a hiatal hernia? Sometimes if it's a sliding HH the endoscopy may miss it. Anyway, there are a few things you can do on your own to see if it alleviates the pain while you continue your medical search to make sure it's not your heart. I wish you well.