Hello, The painful right midline stomach is indicating for possible colitis attack. As you have been your gallbladder removed, then, it might explain the symptoms. Most probably you have not respected the restrictions in diet, and this has caused lots of gas in your colon with the pain at the end. Fluconazole is used to treat candida infection of guts, which makes me think you ve been diagnosed with a yeast infection. Take probiotics to stabilize intestinal flora. Avoid foods that would aggravate the pain. Increase fluids intake. Do not rush when you eat. Eat often and in small portions. If still no improvement after these steps, should get back to your Dr. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Albana Sejdini, General & Family Physician