Hi,Dear,Thanks for your query to HCM.
Dear I read facts of your query and reviewed it in context to your query health issues.
I understood your health concerns and feel Concerned about them.
Based on the facts of your query the reply of your query is-
IBS with Colitis accompanied with Proctitis.
Your sitting pain / back ache while having bowel movements with painful rectum for 2 hrs , are all due to the inflammed bowel.Which is mostly due to the recent food induced bout of infective episode in the bowels.

Do's Suggested-
Check the stool and Consult GI physician and surgeon.
Bland diet without chillies with plenty of fluids.
Yoghurt / Butter milk with rice porridge x 2 time a day x 2 weeks,
Banana Milk Shakes to sooth out the bowels.

Nonspicy /small semisolid diet helpings x 3 -4 times day
Vit D and Calcium
and Vit B12 and Folic Acid - to tone up the bowel functioning.
Tab Imodium with Tab Motrin and Tab Pantoprazole- x 2 times a day x 10 days time with the above die would controll your acute health issues in next
weeks period and would stabilze bowel functions and back pains in next 2 weeks pain.
But in the absence of other information,I would suggest you to go for GI-Physician-Consults.As the facts could be different from what you submitted.
So looking in to the sensitive complaint of yours,I would suggest you to rule out Diverticulitis/Crohn's/Fissure In Ano by Consulting and investigating with GI Physician and Surgeon.
It would be prudent to have physical Check from Consulting GI Physician and Surgeon to start with/ first- before planning further investigations and treatment for it.
Other causes need to be ruled out in any case.

Just don't worry and be patient and co-operate with your doctors,till you verify with your attending doctors.
Need to Check with Consulting Physician/Surgeon- if need be, if things don't recover.

-Other causes need to be verified with your family GP /Consulting Physician/Surgeon -Specialist doctors, as the facts may be different what you submitted.


-For this Second opinion with GI Physician and Surgeon- specialist-is needed who would do proper investigation after proper physical assessment to resolve your health issues.
-for early recovery-please follow above do's which would resolve your complex health issues.

Hope this would help you to treat your health issues in the best way possible.

Welcome for any further query in this regard.
Good Day!!

Dr.Savaskar M.N.
Senior Surgical Specialist
M.S.Genl-CVTS