Hi N/A, thanks a lot for your reply, I‘m very sorry for you too, hopefully you feel better now that the inflamed pouch is gone! I hope you recover well from the surgery. I suppose my rectal discharge also comes in surprise attacks, I just don‘t notice as it goes directly into a gauze swab. May I ask if it stopped or at least got better over time? Do you still have it now after your pouch removal? Sorry for asking such indiscreet questions, but for such details I rely more on the personal experience of many than on what „science“ says 
Thank you all again for your thoughts about my case, I got the results from my blood work and the inflammation markers have gone down pretty well during the last week and so I hope it is just my body adjusting to the new plumbing and healing from the massive surgery. I also noticed this feeling in my coccyx occured after walking around, maybe it has to do with my pelvic floor being involved in the surgery..?
Anyway, your support helped me to stay relatively calm and the blood work gives me some good reason to be optimistic
It‘s bed time over here, so I‘ll take my sleeping pill (one thing I love about hospitals
) and give this poor body some rest