Hello, vinod, I know you have been waiting for some doctor to answer your concerns. You have your colitis confined to the lower part of the colon and with your current medications you seem to be in remission. I think it is very important that you take your medications on a regular basis. Just because you feel good , you can t stop them and re-start when the symptoms come back. You need maintenance regimen. As for your stomach not feeling right , you might want to get an upper GI series of x-rays to check the stomach and duodenum. It is possible that you could have gastritis or even small ulcer. You might want to discuss with your gastroenterologist and he might even consider endoscopy to look in and biopsy if needed. You can take a trial course of a proton pump inhibitor like Omeprazole or Lansoprazole once or twice day to see if this relieves your symtoms. I still would like you to consult with the doctor. I wish you well.