Colitis in scan. In appendix region.

Hi sir/ mam I'm 37 yr old female I'm getting pain near my left side of  belly button for the past 1 month on and off.. dr gave probiotic tablets for 15 days.. I had appendix operation 18 yrs before.. after 2 years of appendix operation I got hemorroids .. I took allopathy for one month( on 2012), and after that sidhdha medicine for 3 months.. after few months that pain gone.. but external piles remains same with no pain at all for the past 14yrs.. nowadays I eating outside foods a lot so again I'm getting pain on anus also.. if I get constipation I will pain in appendix region.. So doc took a scan last yr tat time i got sever uti and colitis .. after few months that pain gone.. but now from the March month I'm having pain on my left of belly button and for the past three days I'm getting pain in anus also.. motion is not hard .but first I'm getting pain and after some hours paining. I'm getting loose motion for some day and some day constipation.. in scan thick walled rectum- colitis