For your acute vomiting and bloating, a prokinetic antiemetic like metoclopramide or domperidone can help control nausea and improve gut motility. To address the indigestion and chronic acid issues, a proton pump inhibitor like omeprazole can reduce stomach acid. Please prioritize staying hydrated with oral rehydration salts. Since you have been vomiting for four days alongside chronic gastric symptoms, it is highly recommended to see a doctor for a proper evaluation and personalized prescription. Avoid self-medicating long-term. Seek immediate medical care if you experience severe abdominal pain, high fever, or cannot keep fluids down.