I had this surgery 4 months ago by the specialist in Yorkshire but also had a hysterectomy at the same time. I did have a lot of issues with my lower bowel post surgery which was probably caused by having to have bowel prep before surgery and the antibiotics I had to take for a week, as well as endo being excised from everything including bowel and rectum. Basically I obviously have a sensitive lower bowel which caused me no end of toilet trips and ended up with passing just pus and mucus about 25 times a day at worst. Ended up going to see bowel specialist and had to have a CT scan with dye and flexible sigmoidoscopy, as well as biopsies which al came back clear.
Apart from that I have not had endo symptoms since, but do still get tired due to the healing process and recovery after 7.5 hour op. On a positive note, nothing showed up endo wise on CT scan, just had 3cm cyst on left ovary which is normal.
I am not trying to put you off the surgery but it would have been nice to have been told about the possible after affects to the bowel. I pretty much had 9 weeks of bowel hell. I am still under colorectal consultant as my bowels although much better are still not back to normal. Feel free to PM me if you need any more info.