I am obese person but did not have major digestive issues. Last one month after some business travel I am frequently having stomach indigestion and nausea and typically after eating non veg food even if home cooked. I visited my family doctor and took a dose of antibiotics but still this condition persist. I don't have issue with constipation or loose stools. It's just after few hours of eating fish, chicken or mutton I start burping with oily reflux and stomach bloating, vomiting and severe gastric. It gets better after taking PAN D tablet. Days with just vegetarian food is fine.