Hello, You have a history of umbilical hernia repair and cholecystectomy done some years back. Now you have pain, vomiting, hardness and tenderness around the navel. You are suggested to get clinically examined by your surgeon to rule out any protruding abdominal tissue that can no longer be pushed back into the abdominal cavity. Vomiting may also be indicative of post cholecystectomy syndrome. You are suggested to get imaging tests done to rule out any complications. You will be treated accordingly with medicines or surgery. Yes, you can take the medicine prescribed, it will help to reduce the pain causing intestinal muscles to relax and reduces abdominal pain. Side effects of IBSCIM if taken for a prolonged period are increased heart rate, arrhythmia, excessive thirst, dryness of mouth, constipation, etc. Take small meals multiple times a day, avoid spicy oily junk food. Maintain your eating timings. For relieve you can take antacids and PPI s. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician