Hi thanks for contacting HCM.... The constipation and gas problem can lead headache and reflux associated vomitting ... You can have simple digestive dysfunction.. For few days avoid heavy fatty meals. Take pentoprazole tablet for acidity for two week... Excess spicy avoided.... Avoid following precipitating factors that can lead bloating...... -cabbage , cauliflower , onion like gas forming food -too fast eating -stress -smoking -frequent chewing of chewing gum etc.... Take good fruits like avocados , blueberries , peaches etc... More fiber diet taken like whole grain , wheat bran , carrot etc. Regular exercise. More water .. If no relief then stool softener can be taken like ispghula in milk. Before that if needs organic causes ruled out by USG. Take care