Hi Dear !! Thanks for your query to HCM. Read and reviewed query. Based on facts of your query, You seem to suffer from- Coccidynia with Rectal paresis with Intusuception with IBD. CIP(Chronic Intestinal Pseudo-obstruction-needs to be ruled out if no physical obstruction is there. Intususception would indicate chronic Crohn s or Ulcerative colitis and needs to be ruled out and treated accordingly with GI Endoscopist and GI Surgeon. It could be suggestive of Scleroderma-in initial stages- with spastic IBS. CT / and biospsies would help out to fix the exact cause in your case. Changed Biomechnics accompanied with IBS , has accompanied inflamed sacro-Coccyxial joint,which causes pelvic bone pain in your case. With Severe PID with accompanied IBS - is giving a false sense that the Coccydinya is causing rectal fullness from functional paresis. Thus these conditions are all inter-related and is caused by both the entities along with accompanying PID-pelvic inflammatory disease. Treats- No need of colonoscopy. Try Bland diet with Yogurt helping 2 per day. Be Low in intake Volumes of solid diets for 1 week. Be more on Liquids with rice / bannana / smashed potato or smashed apple with honey. Meticulously Use PPI like Normaxine-RT-Rabeprazole- +Clinidium-antispasmodics +Chlordizepoxide-antianxiety +Dicyclomine to treat anxiety depression and many accompanied central causes in IBS. Supplemented with B12 / Folic Acid would recoup your condition very soon. Be on dietary and life style changes rather than steroids and antibiotics, irrationally, as you are lactating simultaneously. Don t worry for all this. Act like suggested. Hope this would resolve your health issues early. Welcome for any further query in this regard. Good Day !! Dr.Savaskar M.N. Senior Surgical Specialist and Thorasic / Chest Surgeon M.S.Genl-CVTS